Where does “triangular” come from?

triangular (Portuguese) comes from Portuguese -ar, from Old Portuguese -ar, from Latin -are, from Latin -o, from Proto-Italic -ōd, from Proto-Indo-European -éad.

triangular (Portuguese): triangular; to triangulate

Definitions

  1. triangular; to triangulate

Ancestry of “triangular”, step by step

StepLanguageWordMeaning
1Portuguese-arforms the impersonal infinitive of...
2Old Portuguese-ar—
3Latin-arepresent active infinitive of -ō; -āre;...
4Latin-oforms masculine agent nouns, positive and...
5Proto-Italic-ōd—
6Proto-Indo-European-éad—
Every word from Proto-Indo-European -éad →Every word from Portuguese -ar →Every word from Latin -o →