--- In cybalist@..., "Piotr Gasiorowski" <gpiotr@...> wrote:
> The preposition <iz> (<izU> is a secondary isolation form) and the
etymologically identical prefix <iz-> cannot have developed out of *
(j)ez-. Initial <i-> may regularly continue older *i:-, *ei-, *i-,
*ju-, *ju:- and sometimes even *oi-, but not *e- or *je-.
Some authors state that Proto-Slavic *I- could in some cases continue
PIE *e- (word-initially). I'll try provide some details this evening.
Sergei