opacus.
shaded, darkened; in the shade
Meaning & usage
shaded, darkened; in the shade
shady, dark; casting shade
obscure
opaque
Where this word comes from
Unknown. Antonym of aprīcus. Long compared with Proto-Germanic *abuhaz (“turned the wrong way, wicked”), Sanskrit अपाञ्च् (ápāñc, “located backwards, behind”), Serbo-Croatian опак, ȍpāk (“wicked, evil”), which are from Proto-Indo-European *h₂epó (“away”) and Proto-Indo-European *h₃ekʷ- (“see”); the Latin would be via metathesis from *apōcus. De Vaan remains unconvinced and suggests Proto-Italic *op-wākos (“situated towards the empty side”), from Proto-Indo-European *h₁epi (Latin ob) and Proto-Indo-European *h₁weh₂- (“empty”) (Latin vacuus and vānus), with the same phonetic development as in oportet.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.