optomechanical

Etymology tree Proto-Indo-European *h₃ekʷ-der. Ancient Greek ὄπωπᾰ (ópōpă) Proto-Indo-European *-tós Ancient Greek -τός (-tós) Ancient Greek ὀπτός (optós)der. English opto- Proto-Indo-European *megʰ-der.? Ancient Greek μηχᾰνή (mēkhănḗ) Proto-Indo-European *-kos Ancient Greek -κός (-kós) Ancient Greek -ῐκός (-ĭkós) Ancient Greek μηχᾰνῐκός (mēkhănĭkós)bor. Latin mēchanicusder. Old French mecaniquebor. Middle English mechanic Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al Middle English mechanical English mechanical English optomechanical From opto- + mechanical.

来源：wiktionary