English

electrotaxis

From electro- + taxis.

Ancient Greek ἤλεκτρον ‘amber’

French electrum

French électro-

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 movement of an organism or system of cells in an electric field

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

Etymograph / electrotaxis