Where does “μεγαλο-” come from?

μεγαλο- (Ancient Greek) comes from Ancient Greek μέγας, from Proto-Indo-European meǵh₂s — great.

Ancestry of “μεγαλο-”, step by step

StepLanguageWordMeaning
1Ancient Greekμέγαςbig, large; great, mighty, loud; marvelous,...
2Proto-Indo-Europeanmeǵh₂sgreat

Words derived from “μεγαλο-”

Every word from Proto-Indo-European meǵh₂s →Every word from Ancient Greek μέγας →
μεγαλο- — Etymology, Origin & Word History | Etymology Explorer