Meanings
prefix
Synonyms & antonyms
Also see
Origin
- Proto-Indo-European*h₃ekʷ-
- Ancient Greekὄπωπᾰ (ópōpă)
- Ancient Greekὀπτός (optós)
- Englishopto-
From Ancient Greek ὀπτός (optós, “sight, seen, visible”), from ὄψεσθαι (ópsesthai, “to be going to see”).
More words from Ancient Greek
Full word history & related roots →Translations
French opto-
- opto-Translations
Irish opta-
- opta-Translations
Italian opto-
- opto-Translations
Polish opto-
- opto-Translations
Cite this entry
APA
opto-. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/opto-
MLA
“opto-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/opto-. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “opto-,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/opto-.
Source: opto- on Wiktionary, CC BY-SA 4.0.