From: Miguel Carrasquer
Message: 27858
Date: 2003-11-30
>Now, how do we account for that? Well, forms enterering into-tu also occurs accented (aktú- "ray", r.tú- "season', jantú- "creature").
>composition are plainly reduced, cf. *n-, *dwi-, *H1su- and many
>others which never show full-grade. That rings a bell, for the
>reduced forms of the thematic vowel (quoted as *-o- when not
>reduced) are precisely *-u- and *-i-. A fine hierarchy is seen in
>the variants of *-tó- (accented form) which are *-tu- (immediately
>following the accent) and *-ti- (final of compounds): Vedic kr-tá-
> 'made', kár-tu-m 'to make', havís.-krti- 'the making of a
>sacrificial meal'.