From: Miguel Carrasquer
Message: 14046
Date: 2002-07-17
>I believe I answered this some years ago. The root 'drink' is indeedI believe I have found evidence for the regular loss of *y (*i)
>*peH3y- and alternates accordingly, e.g., 3sg aor. *poH3-t (Skt. á-pa:t),
>caus. *poH3y-éye-ti (pa:yáyati) with retention of -y- before a vowel and
>loss in the environment VH_C# (and VH_CC). To go with the root aorist
>there was a reduplicated present, of which píbati etc. is properly the
>refashioned subjunctive. The old injunctive would be 3sg *pi-péH3y-t >
>*pi-póH3-t, 3pl *pé-pH3y-nt > *pé-pH3-n.t (the last form with y > zero in
>CH_CC, processed before full syllabification of the sonant, as general
>for these rules). The injunctive was now structured exactly like, say,
>*dhi-dhéH1-t, 3pl *dhé-dhH1-n.t and then formed its subjunctive the same
>way, which seems to have been *dhí-dhH1-e-t(i), cf. Skt. dádhati (with
>analogical e-reduplication from dádha:ti, witness the general type
>tís.t.hati, sí:dati etc. which must come from somewhere). For this verb,
>the form would be *pí-pH3-e-t(i), whence PIE *píbeti. The easiest way out
>is to consider the change pH3 > b older than laryngeal coloration, in
>which case /-be-/ offers no problem.