corrugate
/ˈkɒɹ.ʊˌɡeɪt/
"corrugate" is a 9-letter English headword indexed on PlainSpell.
The verdict
“corrugate” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To wrinkle (the skin).
Corpus desk
Index EN-corrugate · corrugate · English
corrugate · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 9 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "C" thin
- PHOTO-UNK Peer pending
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
| Property | Value |
|---|---|
| Headword | corrugate |
| Language | English |
| Part of speech | Verb |
| IPA | /ˈkɒɹ.ʊˌɡeɪt/ |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “corrugate” in English
Rare enough to double-check
corrugate is uncommon English outside the top frequency list, classed as averb, transcribed /ˈkɒɹ.ʊˌɡeɪt/. Rarity is why readers land here mid-draft. 2 senses are on record.
corrugate has no tracked misspelling variants, suggesting the orthography follows predictable English patterns. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: The verb is first attested in 1620, the adjective in 1745; borrowed from Latin corrūgātus, perfect passive participle of Latin corrūgō (“to wrinkle, corrugate”) (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from con- + rūga (“wrinkle… The correct English form is corrugate, spelled C-O-R-R-U-G-A-T-E.
Definition
- 1To wrinkle (the skin).
- 2To fold into parallel folds, grooves or ridges.
Recorded use
Wiktionary examplesThese source excerpts show how corrugate appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The latter we have given, extend their Influences to the Head and whole nervous System, at the same time that they warm, comfort, and strengthen the Fibres of the Stomach, and dissipate Flatulencies, corrugate the Membranes, and promote Digestion: […]
Galvanised rust-resistant weatherproof corrugated sheet roof
Etymology
The verb is first attested in 1620, the adjective in 1745; borrowed from Latin corrūgātus, perfect passive participle of Latin corrūgō (“to wrinkle, corrugate”) (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from con- + rūga (“wrinkle, crease”) + -ō (verb-forming suffix). Cognate with Spanish acurrucar (“to snuggle; to curl up due to cold; to huddle”).
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.