What about
*k^ad- 'fall': Skt. sad-, Lat. cado 'fall' (a-colour even if *k^, not *k,
evident)
*keH2- *[kah-] 'desire': Skt. ka:- 'desire', Lat. ca:rus 'dear' etc.
(yes, -a- here but caused by H2 rather)
And:
*sk^end- 'shine, appear': Skt. chadáyati, Av. sadhaiieiti 'seems', prob.
Grk. kékasmai 'distinguish oneself'
*skend- 'leap': Skt. skand-, OIr. scendid/scennid 'leap' etc. (with -e-
instead of expected -a-)
Source:
http://www.unc.edu/~melchert/piedorsals.pdf
Grzegorz J.
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