From: alexandru_mg3
Message: 42327
Date: 2005-11-29
>Actually, we don't need a /p-/ to produce -ã- in the weak stem. The /r/Piotr, doesn't matter the history of Romanian e > ã here => There is
>itself conditions the retraction of pretonic *e, cf. rãs,inã < resi:na.
>This suggests that *pread- was replaced by <prad-> because of the
>derivational ambiguity of its unstressed alomorph <prãd->.