English

oto-

Oto- comes from Ancient Greek οὖς ‘ear’, and goes back to Proto-Indo-European *h₂ew- ‘to enjoy’.

Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-‘to enjoy’reconstructed
Proto-Indo-European, derivedc. 4500–2500 BCE*h₂ṓws‘ear’reconstructed
Ancient Greekc. 800–300 BCEοὖςoûs‘ear’
Englishtodayoto-

attested reconstructed ? uncertain or disputed

Lineage

Proto-Indo-Europeanc. 4500–2500 BCE*h₂ew-‘to enjoy’reconstructed
Proto-Indo-European, derivedc. 4500–2500 BCE*h₂ṓws‘ear’reconstructed
Ancient Greekc. 800–300 BCEοὖςoûs‘ear’
Englishtodayoto-

Linked words

through Proto-Indo-European *h₂ew- ‘to enjoy’

love, audience, egg, aviation, audit, oval, obey, avid, audible, anesthesia, ey, ovation, avian, acoustics, auspicious, aviator, acoustical, avarice, aviary, ocarina, 64 more

through Proto-Indo-European *h₂ṓws ‘ear’

ear, acoustic, aural, 41 more

through Ancient Greek οὖς ‘ear’

otolaryngology, 5 more

Today it means

prefix —

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

Etymograph / Proto-Indo-European *h₂ew- / oto-

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