←
Ancient Greek ὀπτός (affix)
←
Ancient Greek -ῐκός (affix)
→
English opto- (derived)
→
Catalan òptic (derived)
→
Norwegian Bokmål optisk (derived)
→
Norwegian Bokmål optikk (derived)
→
Norwegian Nynorsk optisk (derived)
→
Norwegian Nynorsk optikk (derived)
→
Portuguese ótico (derived)