erythematosus
/ˌɛɹɪˈθiːməˌtəʊsɪs/
"erythematosus" is a 13-letter English headword indexed on PlainSpell.
The verdict
“erythematosus” is uncommon English (frequency #72,282 among 18,836 “E” headwords), classed as a noun. The kind of spelling people second-guess.
- #72,282
- frequency rank, English
- 18,836
- “E” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An eruption of red lesions.
| Property | Value |
|---|---|
| Headword | erythematosus |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌɛɹɪˈθiːməˌtəʊsɪs/ |
| Letters | 13 |
| Frequency rank | #72,282 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “erythematosus” sits in English frequency
Rare enough to double-check
erythematosus is uncommon English at frequency #72,282 among 18,836 “E” headwords, classed as anoun, transcribed /ˌɛɹɪˈθiːməˌtəʊsɪs/. Rarity is why readers land here mid-draft. Gloss: "An eruption of red lesions.".
erythematosus doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From Ancient Greek ἐρύθημα (erúthēma, “a redness or flush on the skin”), from ἐρυθρός (eruthrós, “red”). The German form erythematodes is arguably the preferred correct form. The correct English form is erythematosus, spelled E-R-Y-T-H-E-M-A-T-O-S-U-S.
Definition
- 1An eruption of red lesions.
Etymology
From Ancient Greek ἐρύθημα (erúthēma, “a redness or flush on the skin”), from ἐρυθρός (eruthrós, “red”). The German form erythematodes is arguably the preferred correct form.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “erythematosus”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is E-R-Y-T-H-E-M-A-T-O-S-U-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˌɛɹɪˈθiːməˌtəʊsɪs/ (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
Other uncommon English words near this rank
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.