Where does “logic” come from?

Logic comes from Old French logike, from Latin logica, from Ancient Greek λογική (logikḗ), derived from λογικός (logikós), itself from λόγος (lógos) meaning "word" or "reason," rooted in λέγω (légō) "to speak," ultimately from Proto-Indo-European leǵ-.

logic (English): logical; A method of human thought that involves...

Definitions

  1. logical; A method of human thought that involves...

Ancestry of “logic”, step by step

logic traces back through two separate lines of ancestry.

via French logique

StepLanguageWordMeaning
1Frenchlogiquelogic; logical
2Latinlogicanominative feminine singular of logicus;...
3Latinlogicuslogical; reasonable
4Ancient GreekλογικόςBelonging to speech: prose; Belonging to reason:...
5Ancient GreekλόγοςThat which is said: word, sentence, speech,...
6Ancient GreekλέγωI put in order, arrange, gather; I choose, count,...
7Proto-Indo-Europeanleǵ-to gather, collect, with derivatives meaning to...

via English AL

StepLanguageWordMeaning
1EnglishALInitialism of assembly language; Initialism of...
2Dutchalall, all of; already; yet
3Middle Dutchalall, all of; completely; even though, no matter...
4Old Dutchāl
5Proto-West Germanicallall
6Proto-Germanicallazall
7Proto-Indo-Europeanh₂él-to grow, nourish

Words derived from “logic

Every word from Proto-Indo-European leǵ-