French word impatiemment comes from French -ment, French impatient (Impatient person Impatient.)

Detailed word origin of impatiemment

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.
impatient	French (fra)	Impatient person Impatient.
impatiemment	French (fra)	Impatiently, without patience.. Sadly, with sadness.

Words with the same origin as impatiemment