opaco

From Latin opācus (“shaded, shady, dark”).

opaco (feminine opaca, masculine plural opacos, feminine plural opacas)

1. opaque (allowing little light to pass through)

• opacamente

• opacidade

• “opaco”, in Dicionario da Real Academia Galega (in Galician), A Coruña: Royal Galician Academy, 2012–2026

(Possibly borrowed) from Latin opācus (“shaded, shady, dark”), itself of unknown origin.

• IPA^(key): /oˈpa.ko/
• Rhymes: -ako
• Hyphenation: o‧pà‧co

opaco (feminine opaca, masculine plural opachi, feminine plural opache)

1. opaque (allowing little light to pass through)
2. matt
3. dull

• opacamente

• (Classical Latin) IPA^(key): [ɔˈpaː.koː]
• (modern Italianate Ecclesiastical) IPA^(key): [oˈpaː.ko]

See the etymology of the corresponding lemma form.

opācō

1. dative/ablative masculine/neuter singular of opācus

From opācus + -ō.

opācō (present infinitive opācāre, perfect active opācāvī, supine opācātum); first conjugation

1. to shade, cover with shade
   1. (by extension) to cover
   2. (by extension) to darken

• English: opaque, opacate

• “opaco”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “opaco”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• “opaco”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.

Learned borrowing from Latin opācus (“shaded, shady, dark”).

• Rhymes: -aku

opaco (feminine opaca, masculine plural opacos, feminine plural opacas)

1. opaque (allowing little light to pass through)

• opacamente

• opacidade

• “opaco”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “opaco”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

• IPA^(key): /oˈpako/ [oˈpa.ko]
• Rhymes: -ako
• Syllabification: o‧pa‧co

From Latin opācus (“shaded, shady, dark”).

opaco (feminine opaca, masculine plural opacos, feminine plural opacas)

1. opaque (allowing little light to pass through)

See the etymology of the corresponding lemma form.

opaco

1. first-person singular present indicative of opacar

• “opaco”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025