adjective rough, hard, harsh, esp. of speech (vācā para-kaṭukā Dhs.1343), MN.i.286 = Dhs.1343; AN.v.265 = AN.v.283, AN.v.293; Dhs-a.396
■ akakkasa: smooth Snp.632; Ja.iii.282 Ja.v.203, Ja.v.206, Ja.v.405, Ja.v.406 (cp. J.P.T.S. 1891–⁠93, 13); akakkasanga with smooth limbs, handsome, Ja.v.204.

Sk. karkaśa to root kr̥ as in kakkaṭaka