eonism
/ˈi.əˌnɪzəm/
"eonism" is a 6-letter English headword indexed on PlainSpell.
The verdict
“eonism” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 6
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The pretence of being the opposite sex, especially that by a man of being a woman; transvestism.
| Property | Value |
|---|---|
| Headword | eonism |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈi.əˌnɪzəm/ |
| Letters | 6 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “eonism” sits in English frequency
Rare enough to double-check
eonism is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈi.əˌnɪzəm/. Rarity is why readers land here mid-draft. Gloss: "The pretence of being the opposite sex, especially that by a man of being a woman; transvestism.".
Our edit-distance generator produced no likely misspellings for eonism, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: Coined in 1920 by the British physician and sexologist Havelock Ellis (1859–1939) after Chevalier d'Eon (1728–1810), a French diplomat, spy and soldier who presented as male for 49 years, then as a female for 33. Ellis had previously used the term sexo-aest… The correct English form is eonism, spelled E-O-N-I-S-M.
Definition
- 1The pretence of being the opposite sex, especially that by a man of being a woman; transvestism.
Etymology
Coined in 1920 by the British physician and sexologist Havelock Ellis (1859–1939) after Chevalier d'Eon (1728–1810), a French diplomat, spy and soldier who presented as male for 49 years, then as a female for 33. Ellis had previously used the term sexo-aesthetic inversion.
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
How do you spell "eonism"?
What does "eonism" mean?
How do you pronounce "eonism"?
What is the origin of the word "eonism"?
Is PlainSpell free to use?
Using “eonism”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is E-O-N-I-S-M - every other letter order is a misspelling in standard orthography.
- Say it as /ˈi.əˌnɪzəm/ (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.