*Kʷetwóres rule
 | This article may be too technical for most readers to understand. (August 2019) |
The so-called *kʷetwóres rule of
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. It has been observed by earlier scholars, but it was only in the 1980s that it attracted enough attention to be named, probably first by Helmut Rix
in 1985. Examples:
- *kʷetwóres < *kʷétwores "four" (Latin: quattuor)
- singular accusatives,
- of r-stems, *swes-ór-m̥ < *swés-or-m̥ "sister" acc. singular
- of r-stems, *ǵʰes-ór-m̥ < *ǵʰés-or-m̥ "hand" acc. singular
- of s-stems, Ausos" (Vedic Sanskrituṣā́sam)
The rule is fed by an assumed earlier sound law that changes è to ò after an accented syllable: *kʷetwóres < *kʷétwores < *kʷétweres.
Rix invoked 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: *ǵe-ǵónh- / *ǵé-ǵn̥h- < *ǵé-ǵenh- / *ǵé-ǵn̥h- "created/engendered".
The rule has been invoked by Mottausch to explain accented ó grades in the PIE nominal ablaut.
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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