English

gyrocircle

From gyro- + circle.

Proto-Indo-European *gew- ‘to curve, to bend’

Ancient Greek γῦρος ‘circle’

English gyro-

Latin circus ‘circle’

Latin circulus

Old French cercle ‘circle’

Middle English circle

Today it means

noun A hyperbolic circle in gyrovector space.

Language periods are conventional ranges, not dates for this word.

Etymograph / gyrocircle