Latin word morigerus comes from Latin gerundus, Latin mos

Detailed word origin of morigerus

Dictionary entry	Language	Definition
gerundus	Latin (lat)
mos	Latin (lat)	(transf.) precept, law, rule. (transf.) quality, nature mode, fashion. Conduct, behavior, character. Humor, self-will, caprice. Manner, custom, way, usage, practice, habit.
morigerus	Latin (lat)	Compliant, obsequious, obedient.

Words with the same origin as morigerus