Where does “definitional” come from?

Definitional comes from English aldehyde through Middle French definition, Latin definitio meaning a setting forth, Latin -tio a noun suffix, Latin de meaning from, and Proto-Indo-European dʰeygʷ-.

definitional (English): Of or relating to a definition; Used to define...

Definitions

  1. Of or relating to a definition; Used to define...

Ancestry of “definitional”, step by step

StepLanguageWordMeaning
1EnglishdefinitionA statement of the meaning of a word or word...
2Middle Englishdiffinicioun
3Middle Frenchdefinitiondefinition
4Latindēfīnītiōdefinition; precise description
5Latindēfīniōto bound, set bounds to; to limit
6Latindē-of; from
7Latinof; concerning; about
8Latinpostbehind; after, since, besides, except; behind,...
9Latinposteablative singular of postis
10Proto-Italicpostibehind, after
11Proto-Indo-Europeanpóstiafter
12Proto-Indo-Europeanpósafterwards, post; by, at

Words derived from “definitional

Every word from Proto-Indo-European pós