eightieth
/ˈeɪ.ti.əθ/
"eightieth" is a 9-letter English headword indexed on PlainSpell.
The verdict
“eightieth” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The ordinal form of the number eighty.
| Property | Value |
|---|---|
| Headword | eightieth |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈeɪ.ti.əθ/ |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “eightieth” sits in English frequency
Rare enough to double-check
eightieth is uncommon English outside the top frequency list, classed as anadjective, transcribed /ˈeɪ.ti.əθ/. Rarity is why readers land here mid-draft. Gloss: "The ordinal form of the number eighty.".
We couldn't generate a plausible misspelling set for eightieth, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From earlier eighteth, from Middle English eightetithe, eiȝtetithe, eiȝtithe; equivalent to eighty + -eth. For the modern form, see the etymological notes at twentieth. The correct English form is eightieth, spelled E-I-G-H-T-I-E-T-H.
Definition
- 1The ordinal form of the number eighty.
Etymology
From earlier eighteth, from Middle English eightetithe, eiȝtetithe, eiȝtithe; equivalent to eighty + -eth. For the modern form, see the etymological notes at twentieth.
Synonyms
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “eightieth”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is E-I-G-H-T-I-E-T-H - every other letter order is a misspelling in standard orthography.
- Say it as /ˈeɪ.ti.əθ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.