Where does “non-parliamentary” come from?

non-parliamentary (English) comes from English parliamentary, from English parliament, from Middle English parlement, from Anglo-Norman parliament, from Old French parlement, from Old French parler, from Latin parabolō, from Latin parabola — horse.

Ancestry of “non-parliamentary”, step by step

StepLanguageWordMeaning
1EnglishparliamentaryOf, relating to, or enacted by a parliament;...
2EnglishparliamentA formal council summoned to discuss important...
3Middle EnglishparlementA discussion or conversation; talking
4Anglo-Normanparliament
5Old Frenchparlementdiscussion; discourse; debate; argument;...
6Old Frenchparlerto speak; to talk
7Latinparabolōto make clear by metaphors
8LatinparabolaA comparison, illustration, likeness; An...
9Ancient Greekπαραβολήa placing of two things side by side,...
10Ancient Greekπαραβάλλωto compare; to set side by side; I set side by...
11Ancient Greekπᾰρᾰ-near; next to; by, near
12Ancient Greekπαρά
13LatinverēdusA fast or light breed of horse; courier's horse; hunter
14Gaulishwerēdoshorse
15Proto-Celtic*uɸoreidoshorse
Every word from Proto-Celtic *uɸoreidosEvery word from Ancient Greek πᾰρᾰ-Every word from Gaulish werēdos
non-parliamentary — Etymology, Origin & Word History | Etymology Explorer