optoacoustic

Etymology tree
Proto-Indo-European *h₃ekʷ-der.
Ancient Greek ὄπωπᾰ (ópōpă)
Proto-Indo-European *-tós
Proto-Hellenic *-tós
Ancient Greek -τός (-tós)
Ancient Greek ὀπτός (optós)der.
English opto-
Proto-Indo-European *h₂eḱ-
Proto-Indo-European *h₂ew-
Proto-Indo-European *-s
Proto-Indo-European *h₂ṓws
Proto-Indo-European *-yéti
Proto-Indo-European *h₂ḱh₂owsyéti
Proto-Hellenic *akóuhō
Ancient Greek ἀκούω (akoúō)
Proto-Indo-European *-kos
Ancient Greek -κός (-kós)
Ancient Greek -ῐκός (-ĭkós)
Ancient Greek ᾰ̓κουστῐκός (ăkoustĭkós)bor.
Medieval Latin acousticusbor.
English acoustic
English optoacoustic
From opto- + acoustic.