Where does “trilatero” come from?

trilatero (Esperanto) comes from Esperanto tri, from English three, from Middle English thre, from Old English þrī, from Proto-West Germanic þrīʀ, from Proto-Germanic þrīz, from Proto-Indo-European *tréyes.

trilatero (Esperanto): a trilateral, triangle

Definitions

  1. a trilateral, triangle

Ancestry of “trilatero”, step by step

trilatero traces back through two separate lines of ancestry.

via Esperanto tri

StepLanguageWordMeaning
1Esperantotrithree
2EnglishthreeA numerical value after two and before four....
3Middle Englishthrethree
4Old Englishþrīthree
5Proto-West Germanicþrīʀthree
6Proto-Germanicþrīzthree
7Proto-Indo-European*tréyes—

via Esperanto latero

StepLanguageWordMeaning
1Esperantolateroside
2Latinlātuswide, broad
3LatincaudaA tail
4Proto-Italickaudātail
5Proto-Indo-Europeankeh₂udeh₂—
Every word from Proto-Indo-European *tréyes →Every word from Proto-Germanic þrīz →Every word from Proto-West Germanic þrīʀ →
trilatero — Etymology, Origin & Word History | Etymology Explorer