tidal.
Relating to tides.
Meaning & usage
Relating to tides.
Where this word comes from
Etymology tree Proto-Indo-European *deh₂- Proto-Indo-European *deh₂y- Proto-Indo-European *-tis Proto-Indo-European *déh₂itis Proto-Germanic *tīdiz Proto-West Germanic *tīdi Old English tīd Middle English tyde English tide Proto-Indo-European *h₂el- Proto-Indo-European *-is Proto-Indo-European *h₂élisder.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English tidal From tide + -al. Probably a hybrid formation within English. Alternatively it might be from an unattested British Medieval Latin *tīdālis, derived from rare tīda, from Old English tīd. The usual Latin word for “tidal” is aestuālis.
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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.