- crath
- shake, Irish crathadh, Old Irish crothim, *kr$$.to-; perhaps allied to Lithuanian kresti, kraty/i, shake. But it may be allied to crith, q.v. It has been compared to Greek $$Gkradáw, brandish, which may be for $$Gskardáw, root sker in $$Gskaírw, spring, German scherz, joke. This would suit Gaelic crith, Welsh cryd and ysgryd.
Etymological dictionary of the Gaelic language. Alexander Gairm Publications. 1982.