From: Miguel Carrasquer Vidal
Message: 55993
Date: 2008-03-26
>I know the various Polish and Russian names from PGmc. *walh.Since Slavic did not distinguish between /o/ and /a/, that
>"southern foreigner" in -lo-/-olo- probably follow ordinary rules of
>derivation from Proto-Proto-Slav. -al-.
>http://en.wikipedia.org/wiki/Etymology_of_Vlach
>I just want to be sure: Are we absolutely certain all Slavic forms
>from Germanic *walh- are from exactly that form in -al- and not
>something earlier (I'm thinking of the original -ol- in Celtic Volcae)?