Trigonus
/ˈtraɪ.ɡə.nəs/noun
A three-cornered figure or, in historical geometric and astrological usage, a triangle or triangular aspect.
Did you know?In medieval Latin and astrology, *trigonus* was tied to the triangle and the “trine,” one of the most harmonious planetary aspects, because three was seen as a numerically powerful, almost sacred pattern.
Etymological Timeline
Proto-Indo-European
PIE
*tri-
“three”
Ancient Greek
Greek
τρίγωνον (trígōnon)
“a three-cornered figure, triangle”
Classical Latin
Latin
trigonus
“three-cornered; triangular”
Medieval Latin
Latin
trigonus
“a triangle; in astrology, a trine aspect”
Modern English
English
trigone / trigonus
“a triangular or three-angled form, especially in technical or historical usage”