Paragoge

Sound change and alternation
Metathesis Quantitative metathesis
Lenition Consonant gradation Consonant voicing and devoicing Assibilation L-vocalization Debuccalization
Fortition
Epenthesis Anaptyxis Excrescence Prosthesis Paragoge Unpacking Vowel breaking
Elision Apheresis Syncope Apocope Haplology Fusion Cluster reduction
Cheshirization Compensatory lengthening Nasalization Tonogenesis Floating tone
Assimilation Coalescence Coarticulation Palatalization Velarization Labialization Final devoicing Metaphony (vowel harmony, umlaut) Consonant harmony
Dissimilation
Sandhi Liaison, linking R Consonant mutation Tone sandhi Hiatus Synalepha Elision Crasis Synaeresis and diaeresis Synizesis
Other types Rhotacism Rhinoglottophilia Sulcalization

Paragoge /pærəˈɡoʊdʒiː/, adj. paragogic /pærəˈɡɒdʒɪk/, is the addition of a sound to the end of a word. Often, this is due to nativization. It is a type of epenthesis, most commonly vocalic epenthesis.

Diachronic paragoge

Some languages have undergone paragoge as a sound change, so that modern forms are longer than the historical forms they are derived from. Italian sono 'I am' from Latin SUM is an example. Sometimes, as here, the paragogic vowel is an echo vowel.

Paragoge in loanwords

Languages that do not allow words to end in certain or any consonants will add a dummy vowel to the end of loanwords from other languages that include a forbidden final consonant. For example, English rack becomes Finnish räkki and Japanese rakku. Similarly, Arabic ‘araq ("water of life") became raki in Modern Greek.

References

Crowley, Terry. (1997) An Introduction to Historical Linguistics. 3rd edition. Oxford University Press.