List of Latin abbreviations

Nearly all the abbreviations below have been adopted by Modern English. However, with some exceptions (for examples, versus, modus operandi), most of the Latin referent words and phrases are still foreign and unknown to English. In a few cases, English referents have replaced the original Latin ones (e.g., "rest in peace" for R.I.P. and "post script" for P.S.)

Latin was once the universal academic language in Europe. From the 18th century authors started using their mother tongues to write books, papers or proceedings. Even when Latin fell out of use, many Latin abbreviations continued to be used due to their precise simplicity and Latin's status as a learnèd language.

List of common abbreviations

All abbreviations are given with full stops, although these are omitted or included as a personal preference in most situations.

Latin abbreviations
Abbreviation Latin Translation Usage and notes
ADanno Domini"in the year of the Lord"[1]Used to label or number years in the Julian and Gregorian calendars. The AD or the Christian calendar era is based on the traditionally reckoned year of the conception or birth of Jesus of Nazareth, with AD counting years after the start of this epoch, and BC denoting years before the start of the epoch.
Example: The United States Civil War began in AD 1861
a.i.ad interim"temporarily"Used in business organizational charts
A.M.ante meridiem"before midday"[1]Used on the twelve-hour clock to indicate times during the morning.
Example: We will meet the mayor at 10 a.m. (10:00 in 24-hour clock)
c., ca., ca or cca.circa"around", "about", "approximately"[2][3]Used in dates to indicate approximately.
Example: The antique clock is from c.1900.
Cap.capitulus"chapter"Used before a chapter number of laws of the United Kingdom[4] and its (former) colonies.
Example: Electronic Transactions Ordinance (Cap. 553).
cf.confer"bring together" and hence "compare"Confer is the imperative of the Latin verb conferre.[3] Used interchangeably with "cp." in citations indicating the reader should compare a statement with that from the cited source.
Example: These results were similar to those obtained using different techniques (cf. Wilson, 1999 and Ansmann, 1992).

It is also widely used as an abbreviation for "see", although some styles recommend against such use.

cp.compareUsed interchangeably with "cf." in citations indicating the reader should compare a statement with that from the cited source.
Example: These results were similar to those obtained using different techniques (cp. Wilson, 1999 and Ansmann, 1992).
Cpceteris paribus"all other things being equal"Commonly used in economics, ceteris paribus allows for supply and demand models to reflect specific variables. If one assumes that the only thing changing is, say, the price of wheat, then demand and supply will both be affected appropriately. While this is simplification of actual dynamic market models, it makes learning economic theory easier.
C.V. or CVcurriculum vitae"course of life"A document containing a summary or listing of relevant job experience and education. The exact usage of the term varies between British English and American English. The singular form is never vita. Curriculum is already singular, despite the plural-appearing vitae modifier. The true plural is curricula vitae.
cwt.centum weight"Hundredweight"[1]cwt. uses a mixture of Latin and English abbreviation.
D.V.Deo volente"God willing"
DG, D.G. or DEI GRADei gratia"by the grace of God".[1]A part of the monarch's title, it is found on all British and Canadian coins.
ead.eademsee id. below.
et al.et alii"and others", "and co-workers".[1]It can also stand for et alia, "and other things", or et alibi, "and other places".

Example: These results agree with the ones published by Pelon et al. (2002). Etc. should not be used for people.

etc.et cetera"and the others", "and other things", "and the rest".[1] Other archaic abbreviations include "&c.", "&/c.", "&e.", "&ct.", and "&ca."


Example: I need to go to the store and buy some pie, milk, cheese, etc.

e.g.exempli gratia"for example", "for instance".[1]Example: The shipping company instituted a surcharge on any items weighing over a ton; e.g., a car or truck.
fl.floruit"he/she flourished" or "he/she was in his/her prime", followed by the dates during which the person, usually famous, was active and productive in his profession, as opposed to the person's dates of birth and death. This is usually seen as parenthetical information.Example: The great author Joseph Someone (fl. 2050-75) was renowned for his erudition.
f. (singular)
ff. (plural)		folio/foliis"and following"This abbreviation is used in citations to indicate an unspecified number of pages following the specified page. Example: see page 258ff.
ibid.ibidem"in the same place (book, etc.)"[1]The abbreviation is used in citations. It should not be confused with the following abbreviation.
id.idem"the same (man)".[1]It is used to avoid repeating the name of a male author (in citations, footnotes, bibliographies, etc.) When quoting a female author, use the corresponding feminine form, ead. (eadem), "the same (woman)" (eadem is pronounced with stress on the first e-).
i.a.inter alia"among other things".
Example: Ernest Hemingway—author (i.a. 'The Sun Also Rises') and friend.
i.e.id est"that is", "in other words".[1]


Example: For reasons not fully understood there is only a minor PSI contribution to the variable fluorescence emission of chloroplasts (Dau, 1994 [5]), i.e., the PSI fluorescence appears to be independent from the state of its reaction centre (Butler, 1978 [6]).

J.D.Juris Doctor"doctor of law".
lb. (singular)
lbs. (plural)		libra"scales"Used to indicate the pound (mass).[1]
LL.B. or Ll.B.Legum Baccalaureus"bachelor of laws"The "LL." of the abbreviation for the degree is from the genitive plural legum (singular: lex or legis, for law), thus "LL.B." stands for Legum Baccalaureus in Latin. In the United States it was sometimes erroneously called "Bachelor of Legal Letters" to account for the double "L" (and therefore sometimes abbreviated as "L.L.B.").
M.A.Magister Artium"Master of Arts"A postgraduate academic master degree awarded by universities in many countries. The degree is typically studied for in fine art, humanities, social science or theology and can be either fully taught, research-based, or a combination of the two.
M.O.modus operandi"method of operating" Can refer to one's body of business practices. Also, in criminology, to refer to a criminal's method of operation.
N.B.nota bene"note well"Some people use "Note" for the same purpose.[1] Usually written with majuscule (French upper case / 'capital') letters.
Example: N.B.: All the measurements have an accuracy of within 5% as they were calibrated according to the procedure described by Jackson (1989).
nem. con.nemine contradicente"with no one speaking against"The meaning is distinct from "unanimously"; "nem. con." simply means that nobody voted against. Thus there may have been abstentions from the vote.
op. cit.opere citato"the work cited"Means in the same article, book or other reference work as was mentioned before. It is most often used in citations in a similar way to "ibid", though "ibid" would usually be followed by a page number.
p.a.per annum"through a year"Is used in the sense of "yearly".[1]
per cent.per centum"for each one hundred"Commonly "percent"[7]
Ph.D.Philosophiæ Doctor"Doctor of Philosophy"
P.M.post meridiem"after midday"Used on the twelve-hour clock to indicate times during the afternoon.
Example: We will meet the mayor at 2 P.M. (14:00 in 24-hour clock)
p.m.a.post mortem auctoris"after the author's death"
p.p. and per pro.per procurationem"through the agency of"
PRNpro re nata"as needed"Used in prescriptions
pro tem.pro tempore"for the time being", "temporarily", "in place of"[1]
P.S.post scriptum"after what has been written"It is used to indicate additions to a text after the signature of a letter.
Example (in a letter format):
Sincerely,
John Smith.
P.S. Tell mother I say hello!
Q.D.quaque die"every day"Used on prescriptions to indicate the medicine should be taken daily.
Q.E.D.quod erat demonstrandum"which was to be demonstrated".[1]Cited in many texts at the end of a mathematical proof.
Example: At the end of the long proof, the professor exclaimed "Q.E.D!"
q.v.quod videre"which to see"Used as an imperative.[1] Used after a term or phrase that should be looked up elsewhere in the current document or book. For more than one term or phrase, the plural is quae videre (qq.v.).
Rein re"in the matter of", "concerning"Often used to prefix the subject of traditional letters and memoranda. However, when used in an e-mail subject, there is evidence that it functions as an abbreviation of "reply" rather than the word meaning "in the matter of". Nominative case singular 'res' is the Latin equivalent of 'thing'; singular 're' is the ablative case required by 'in'. Some people believe that it is short for 'regarding', especially if it is followed by semi-colon (i.e., "Re:").
REGregina"queen"A part of the monarch's title. It is found on all British coins minted during the reign of a monarch who is a queen. Rex, "king" (not an abbreviation) is used when the reigning monarch is a king.
r.regnavit"he/she reigned"Often abbreviated as "r." followed by the dates during which the king or queen reigned/ruled, as opposed to the monarch's dates of birth and death. Often used parenthetically after the monarch's name.
R.I.P.requiescat in pace"may he/she rest in peace"Used as a short prayer for a dead person, frequently found on tombstones. "R.I.P." can also mean requiescant in pace, which is the plural form and translates to "may they rest in peace". Some people believe that it stands for rest in peace.
Example: R.I.P., good grandmother.
s.o.s.si opus sit"if there is need", "if occasion require", "if necessary"[8]A prescription indication that the drug is to only be administered once.
Sic.sic. or sic erat scriptum"Thus it was written"Often used when citing text, especially if the cited work has mistakes to show that it has been copied as it was and not mistyped. Sic is often (mis)used as a sign of surprise, incredulity or ridicule regarding the substance of a quote
stat.statim"immediately"Often used in medical contexts.
Example: That patient needs attention, stat.!
viz.videlicet"namely", "to wit", "precisely", "that is to say"[1]In contradistinction to "i.e." and "e.g.", "viz." is used to indicate a detailed description of something stated before, and when it precedes a list of group members, it implies (near) completeness.


Example: The noble gases, viz. helium, neon, argon, xenon, krypton and radon, show a non-expected behaviour when exposed to this new element.

vs. or v.versus"against"Sometimes is not abbreviated.


Example: The next football game will be the Knights vs. the Sea Eagles. In English law the v has no full stop (period) and is never vs and is never pronounced versus but rather as and Example: R(egina) v Gadd (a criminal case) which is pronounced as The Crown and Gadd. Similarly the film Kramer vs. Kramer is in England (at least to a lawyer): Kramer and Kramer although it would be written Kramer v Kramer. In Scots Law, the v is pronounced against. For example, Donoghue v Stevenson is pronounced Donoghue against Stevenson.

Less common abbreviations and usages

Words and abbreviations that have been in general use, but are currently used less often:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 "UNITED STATES GOVERNMENT PRINTING OFFICE Style Manual" (PDF). Archived from the original (PDF) on 2006-12-08. Retrieved 2007-04-16.
  2. 1 2 "Latin acronyms and abbreviations". Retrieved 2007-07-23.
  3. 1 2 3 "COMMONEST ABBREVIATIONS, SIGNS, ETC. USED IN THE APPARATUS TO A CLASSICAL TEXT". Archived from the original on 2007-03-13. Retrieved 2007-04-16.
  4. ↑ http://users.erols.com/kurrency/explanation.pdf
  5. ↑ Dau, Holger (July 1994). "MOLECULAR MECHANISMS AND QUANTITATIVE MODELS OF VARIABLE PHOTOSYSTEM II FLUORESCENCE". Photochemistry and Photobiology 60 (1): 1–23. doi:10.1111/j.1751-1097.1994.tb03937.x.
  6. ↑ Butler, WL (June 1978). "Energy Distribution in the Photochemical Apparatus of Photosynthesis". Annual Review of Plant Physiology 29: 345–378. doi:10.1146/annurev.pp.29.060178.002021.
  7. 1 2 3 4 5 "Latin Abbreviations". Retrieved 2007-08-20.
  8. ↑ "Pharmaceutical Latin. Abbreviations.". Retrieved 2007-04-16.
  9. 1 2 3 4 5 6 7 Worley (Museum Gustavianum, Uppsala University), John; Wagner (Department of History of Science and Ideas, Uppsala University), Thomas Gregor. "How to make swords talk: an interdisciplinary approach to understanding medieval swords and their inscriptions" (PDF). Retrieved 2015-08-08.
  10. ↑ Marchant, J.R.V. ; Charles Joseph F. (1952). Cassell's Latin dictionary. London: Cassell.
  11. ↑ Salutations and Closings in Greek and Roman Letters, Adapted to Electronic Mail, John Opsopaus

External links

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