Where does “momentously” come from?

momentously (English) comes from English momentous, from English moment, from Middle English moment, from Old French moment, from Latin mōmentum, from Latin mōvimentum, from Latin -mentum, from Latin -menta — Creates action nouns or result nouns from verbs.

momentously (English): In a momentous manner

Definitions

  1. In a momentous manner

Ancestry of “momentously”, step by step

StepLanguageWordMeaning
1EnglishmomentousOutstanding in importance, of great consequence
2EnglishmomentA brief, unspecified amount of time; The smallest...
3Middle Englishmoment
4Old Frenchmoment
5Latinmōmentummovement, motion, impulse; course
6Latinmōvimentummovement
7Latin-mentuminstrument, medium, or result of; e.g....
8Latin-mentanominative plural of -mentum; accusative plural...
9Proto-Indo-European-mn̥Creates action nouns or result nouns from verbs
Every word from Proto-Indo-European -mn̥Every word from Latin -mentumEvery word from Latin mōvimentum