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Added 9 October 2026

thirteenth

/ˌθɜːˈtiːnθ/ noun

In Latin: terdecimus, terdecumus, tredecimus Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about thirteenth at Wordnik → Where our words come from →

Position 13 in a countable series of things.

adjective

Coming next after the twelfth in position.

Origin

Inherited from Middle English thrittenthe, thrittethe, from Old English þrēottēoþa; equivalent to thirteen + -th (ordinal suffix).

From Wiktionary, via Kaikki.org (CC BY-SA)

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