French word centaine comes from French cent ((cardinal) hundred.), French -aine

Detailed word origin of centaine

Dictionary entry	Language	Definition
cent	French (fra)	(cardinal) hundred.
-aine	French (fra)	(noun, or, adjective) (demonyms). (noun-only) Indicates approximation, suffixed to a number.
centaine	French (fra)	(in plural centaines) hundreds (in arithmetic). Hundred, about a hundred, about one hundred.

Words with the same origin as centaine