Where does “pedronglau” come from?

pedronglau (Welsh) comes from Welsh pedrongl, from Welsh ongl, from Middle English angle, from Middle French angle, from Old French Angle, from Late Latin Angelus, from Ancient Greek ἄγγελος, from Old Norse engill — angel; messenger.

Ancestry of “pedronglau”, step by step

StepLanguageWordMeaning
1Welshpedronglquadrilateral; rectangle; square
2Welshonglangle, corner
3Middle Englishangle
4Middle Frenchanglecorner
5Old FrenchAngleangel biblical being
6Late LatinAngelus
7Ancient Greekἄγγελοςa messenger; one that announces; angel, heavenly...
8Old Norseengillangel
9Old Saxonengilangel
10Proto-West Germanicangilangel
11Latinangelusangel; messenger
Every word from Latin angelusEvery word from Ancient Greek ἄγγελοςEvery word from Old Norse engill