Where does “birectangular” come from?

birectangular (English) comes from English bi-, from Latin bi-, from Proto-Italic *dwi- — two, bi-, di.

birectangular (English): Containing two right angles

Definitions

  1. Containing two right angles

Ancestry of “birectangular”, step by step

StepLanguageWordMeaning
1Englishbi-API; two, paired, both; half
2Latinbi-having two parts; occurring twice
3Proto-Italic*dwi-two, bi-, di
Every word from Proto-Italic *dwi- →Every word from Latin bi- →Every word from English bi- →