Where does “definitely” come from?

Definitely comes from English definite, from Latin definitus, past participle of Latin definio meaning to set bounds, from Latin de and Latin finis meaning boundary or end, ultimately from Proto-Indo-European dʰeygʷ-.

definitely (English): Without question and beyond doubt; In a definite...

Definitions

  1. Without question and beyond doubt; In a definite...

Ancestry of “definitely”, step by step

StepLanguageWordMeaning
1EnglishdefiniteHaving distinct limits; Free from any doubt;...
2Latindefinituslimited, terminated
3Latindēfīniōto bound, set bounds to; to limit
4Latindē-of; from
5Latinof; concerning; about
6Latinpostbehind; after, since, besides, except; behind,...
7Latinposteablative singular of postis
8Proto-Italicpostibehind, after
9Proto-Indo-Europeanpóstiafter
10Proto-Indo-Europeanpósafterwards, post; by, at

Words derived from “definitely

Every word from Proto-Indo-European pósEvery word from Latin dē-Every word from Proto-Indo-European pósti
definitely — Etymology, Origin & Word History | Etymology Explorer