Etymograph

English

electrocochleography

From electro- + cochleography.

Formed from electro- + cochleography

Ancient Greek ἤλεκτρον ‘amber’

French electrum

French électro-

English electro-

Today it means

noun The measurement of the electrical activity of the inner ear generated by sound

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

Etymograph / electrocochleography