Where does “semiangle” come from?

semiangle (English) comes from English Angle, from Middle English angle, from Middle French angle, from Old French Angle, from Late Latin Angelus, from Ancient Greek ἄγγελος, from Old Norse engill, from Old Saxon engil — angel; messenger.

semiangle (English): an angle of half a given size

Definitions

  1. an angle of half a given size

Ancestry of “semiangle”, step by step

semiangle traces back through two separate lines of ancestry.

via English Angle

StepLanguageWordMeaning
1EnglishAngleA member of a Germanic tribe first mentioned by...
2Middle Englishangle
3Middle Frenchanglecorner
4Old FrenchAngleangel biblical being
5Late LatinAngelus
6Ancient Greekἄγγελοςa messenger; one that announces; angel, heavenly...
7Old Norseengillangel
8Old Saxonengilangel
9Proto-West Germanicangilangel
10Latinangelusangel; messenger

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Latin angelus