French word spectaculairement comes from French -ment, French spectaculaire (Spectacular.)

Detailed word origin of spectaculairement

Dictionary entry	Language	Definition
-ment	French (fra)	Used to form adverbs (from the feminine form of an adjective), most of the time equivalent to the English -wise, -ly. Used to form nouns from verbs, usually of action or state resulting of them. Equivalent to the English -ment.
spectaculaire	French (fra)	Spectacular.
spectaculairement	French (fra)	Spectacularly, dramatically.

Words with the same origin as spectaculairement