>>*k'e > Latin >ce<, whereas plain *ke > ca.
>Looks interesting. I'll think about it. Where did Schrijver publish it?
P Schrijver 1991 the Reflexes of the PIE Laryngeals in Latin (Amsterdam /
Atlanta GA).
I'll need to get back to you on the guru thing. I think there are other
alleged examples, though I'm not on top of the details. I do, however, note
an exception to what you say:
s'i:rs,n-as "head" < *k'rh2sn-os ~ Greek kra:ata
Here RH > i:r, not u:r after the velar.
According to Beekes, RHC > Skt u:rC near labials, labiovelars, m, w. (in
Bammesberer, die Laryngaltheorie, 1988). There is no mention of velars.
Peter