Kʷetwóres rule
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The so-called kʷetwóres rule of Proto-Indo-European (PIE) has been observed by earlier scholars, but has only recently attracted enough attention to be named, probably first by Helmut Rix in 1985. It is a sound law of PIE accent, stating that in a word of three syllables é-o-X the accent will be moved to the penultimate, e-ó-X. Examples include
- kʷetwóres < kʷétwores "four"
- singular accusatives,
- of r-stems, swes-ór-m̥ < swés-or-m̥ "sister" Acc. Sg.
- of r/n-heteroclitica, ǵʰes-ór-m̥ < ǵʰés-or-m̥ "hand" Acc. Sg.
- of s-stems, h2aws-ós-m̥ < h2éws-os-m̥ "Hausos" (Vedic Sanskrit uṣā́sam)
The rule is fed by an assumed earlier sound law that changes è to ò after an accented syllable, i.e. kʷetwóres < kʷétwores < kʷétweres.
Rix invokes the rule in the 1998 preface to the Lexikon der Indogermanischen Verben (p. 22) to explain why in the PIE Perfect the root ó grade is accented, e.g. ǵe-ǵónh- / ǵé-ǵn̥h- < ǵé-ǵenh- / ǵé-ǵn̥h- "created/engendered".
The rule has been employed by Mottausch to explain accented ó grades in PIE nominal ablaut.
[edit] References
- G. Klingenschmitt Die Lateinische Nominalflexion (1992), p. 44.
- M. Kümmel, Stativ und Passivaorist (1996), p. 9.
- K.-H. Mottausch, Die idg. Nominalflexion und die o-Stufe HS 113 (2000).
- K.-H. Mottausch, Die thematischen Nomina im Idg. HS 114 (2001).
- H. Rix, sūdor and sīdus in: FS Knobloch (ed. Ölberg, 1985), p. 348
- K. Stüber, Die primären s-Stämme (2002), p. 24f.
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