cognation

/kɒɡˈneɪʃən/

//kɒɡˈneɪʃən// noun

"cognation" is a 9-letter English headword indexed on PlainSpell.

The verdict

“cognation” is uncommon English (outside the top frequency list), classed as a noun. 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) - A cognate relationship.

Corpus desk

Index EN-cognation · cognation · English

cognation · 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.

Key facts for cognation
PropertyValue
Headwordcognation
LanguageEnglish
Part of speechNoun
IPA/kɒɡˈneɪʃən/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “cognation” in English

cognationsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cognation is uncommon English outside the top frequency list, classed as anoun, transcribed /kɒɡˈneɪʃən/. Rarity is why readers land here mid-draft. Gloss: "A cognate relationship.".

Zero misspellings are on record for cognation in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From Middle English cognacion, cognacioun, from Latin cognātiō; equivalent to cognate + -ion. The correct English form is cognation, spelled C-O-G-N-A-T-I-O-N.

Definition

  1. 1
    A cognate relationship.

Recorded use

Wiktionary examples

These source excerpts show how cognation appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. […] these stones, I say, gratifie our sight, as having a nearer cognation with the Soul of Man, that is Rational and Intellectual, and therefore is well pleased when it meets with any outward Object that fits and agrees with those congenite Ideas her own nature is furnished with.
  2. Cowan (1957a, 1957b) has established the following CVC cognation percentages using for his 'Tami Group' only the languages classed by the present writer as constituting the Upper Tami Families.

Etymology

From Middle English cognacion, cognacioun, from Latin cognātiō; equivalent to cognate + -ion.

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 "cognation"?
"cognation" is spelled C-O-G-N-A-T-I-O-N. The IPA pronunciation is /kɒɡˈneɪʃən/.
What does "cognation" mean?
As a noun, "cognation" means: A cognate relationship.
How do you pronounce "cognation"?
The IPA (International Phonetic Alphabet) transcription for "cognation" is /kɒɡˈneɪʃən/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "cognation"?
From Middle English cognacion, cognacioun, from Latin cognātiō; equivalent to cognate + -ion. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list