Added 9 October 2026
eighteenth
/ˌeɪˈtiːnθ/ noun
In Latin: duodevicesimus Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about eighteenth at Wordnik → Where our words come from →
adjective
- Coming next after the seventeenth in position.
Origin
Inherited from Middle English eightetenthe, eightetethe, from Old English eahtatēoþa, from Proto-Germanic *ahtudô tehundô. Equivalent to eighteen + -th (ordinal suffix).
From Wiktionary, via Kaikki.org (CC BY-SA)