From: Miguel Carrasquer Vidal
>It's a formalist expectation, Miguel. IE inflections don't conform to this kind of agglutinative logicThey don't. But what I've done is assume they once did, and see if
>However, *-i does occur with *-su in the thematic declension (*wlkWo-i-su). This suggests that *wlkWoi is the locative proper, while *-su is a postposition.No, -oi- is here a plural (> dual) morpheme, straight from the
>Greek *-si is clearly secondary, formed as if to gratify your insistence that the Loc.pl. "should also have *-i". Its late origin and analogical spread squares well with its untypical occurrence after vowels and sonorants in the Dat./Loc.pl. of most declensions. Cf. the spread of Lithuanian locatives in -e (pl. -s-e) < *-en.Are there Greek forms with -su?
>As the locative of *-i/*-u stems (and often of consonantal stems) is endingless, the Loc.pl. in *-su could be analysed -- rather conjecturally, I admit -- as a zero-ending locative plus *-su.Of course. I'm just saying that *-su itself can be analyzed as *-sw-