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LATIN · A WORD WITH POSSIBILITIES

acidus.

sour, tart, acid, bitter

6 characters3 syllables approx.Latina language

Meaning & usage

adj[ˈa.kɪ.dʊs]Classical-Latin[ˈaː.t͡ʃi.dus]

  1. sour, tart, acid, bitter

    adjective · declension-1 · declension-2

  2. harsh, grating, rough, shrill

    adjective · declension-1 · declension-2

  3. disagreeable, unpleasant; sharp, keen, pungent; sharp-tongued

    adjective · declension-1 · declension-2 · figuratively
Where this word comes from

Etymology tree Proto-Indo-European *h₂eḱ- Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *h₂eḱéh₁yeti Proto-Italic *akēō Latin aceō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin acidus From aceō (“to be sour”) + -idus.

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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.