Where does “triquadrantal” come from?

triquadrantal (English) comes from English quadrantal, from Latin quadrantalis, from Latin quadrans, from Latin quattŭor, from Portuguese quarto, from Old Portuguese quarto, from Latin quārtus, from Proto-Indo-European kʷeturtos — and.

triquadrantal (English): Having three quadrants

Definitions

  1. Having three quadrants

Ancestry of “triquadrantal”, step by step

triquadrantal traces back through two separate lines of ancestry.

via English quadrantal

StepLanguageWordMeaning
1EnglishquadrantalAn ancient Roman unit of measure for liquids;...
2Latinquadrantalisquarter
3LatinquadransA fourth part of something, quarter, farthing;...
4Latinquattŭorfour; 4
5Portuguesequartoordinal form of quatro; fourth; quarter; fourth;...
6Old Portuguesequartoquarter
7Latinquārtusfourth
8Proto-Indo-Europeankʷeturtos
9Proto-Indo-Europeankʷetwóresfour
10Proto-Indo-Europeankʷe-and

via English tri

StepLanguageWordMeaning
1Englishtritriathlon; triangle
2Proto-Indo-Europeantréyesthree
Every word from Proto-Indo-European kʷe-Every word from Proto-Indo-European kʷetwóresEvery word from Proto-Indo-European kʷeturtos