> Another note, is there any evidence outside of Greek for root-initial
> preconsonantal (ie. vocalizing) laryngeals
On some words the only evidence appears to be from Greek, but sometimes
there is also a collection of bits such as sandhi phenomena.
e.g. *Hgen reduplicates in Sanskrit with intrusive -i- gan-i-gm-at <
*Hgen-Hgn-
*h1ger redulicates in Sanskrit with a long vowel ja:-garti <
*h1ge-h1ger-ti