Where does “cráibdech” come from?

cráibdech (Old Irish) comes from Old Irish crábud, from Proto-Celtic *[[krāb-]]V-tos.

Ancestry of “cráibdech”, step by step

Step	Language	Word	Meaning
1	Old Irish	crábud	piety, devotion, religion; piety, devotion,...
2	Proto-Celtic	*[[krāb-]]V-tos	—

cráibdech — Etymology, Origin & Word History | Etymology Explorer