Where does “mutually” come from?

Mutually derives from Middle French mutuel, from Latin mutuus meaning "reciprocal," ultimately from Proto-Indo-European roots meaning "to move" and "together."

mutually (English): in the same way, each to the other; reciprocally;...

Definitions

  1. in the same way, each to the other; reciprocally;...

Ancestry of “mutually”, step by step

StepLanguageWordMeaning
1EnglishmutualHaving the same relationship, each to each other;...
2Middle Frenchmutuelmutual
3Latinmūtuusborrowed, lent
4LatinmutoI move, remove; I alter, change, modify,...
5Latin-iumSuffix used to form abstract nouns, sometimes...
6Latin-iusforming adjectives from nouns; nominative neuter...
7Proto-Italic-jōsForms comparative adjectives
8Proto-Indo-European-yósCreates adjectives from noun or verb stems

Words derived from “mutually

Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius
mutually — Etymology, Origin & Word History | Etymology Explorer