English

gyrotaxis

From gyro- + taxis.

A compound of gyro- + taxis

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

Ancient Greek γῦρος ‘circle’

English gyro-

Proto-Indo-European *teh₂g- ‘to order, to establish, to rule’

Proto-Hellenic *tat͏̌t͏̌ō

Ancient Greek τᾰ́σσω ‘I arrange”, “I order’

Ancient Greek τάξις ‘arrangement, order’

English taxis

Today it means

noun Any directed locomotion resulting from a combination of gravitational and viscous torques in a flow.

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

Etymograph / gyrotaxis