co-mother

noun

"co-mother" is a 8-letter English headword indexed on PlainSpell.

The verdict

“co-mother” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The relationship of a godmother to the other god-parents, and the legal parents, of a child.

Key facts for co-mother
PropertyValue
Headwordco-mother
LanguageEnglish
Part of speechNoun
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “co-mother” sits in English frequency

co-mother falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Spelling & Dictionary Insight

The English entry for co-mother is 9 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

We couldn't generate a plausible misspelling set for co-mother, typically a sign the spelling maps closely to how the word sounds. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: * com- + mother, as calque of Latin commater, French commère. The correct English form is co-mother, spelled C-O---M-O-T-H-E-R.

Definition

  1. 1
    The relationship of a godmother to the other god-parents, and the legal parents, of a child.
  2. 2
    In polygamy, a wife of one's father who is not one's mother; that is, co-wife of one's mother.
  3. 3
    In polygamy, the relationship between one co-wife and another, in respect to their children.
  4. 4
    In a lesbian couple, the nonbirth mother (partner of the birth mother) of a child, especially one who takes an equal role in mothering the child.

Etymology

* com- + mother, as calque of Latin commater, French commère.

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 "co-mother"?
"co-mother" is spelled C-O---M-O-T-H-E-R.
What does "co-mother" mean?
As a noun, "co-mother" means: The relationship of a godmother to the other god-parents, and the legal parents, of a child.
What is the origin of the word "co-mother"?
* com- + mother, as calque of Latin commater, French commère. 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.

Using “co-mother”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-O---M-O-T-H-E-R - every other letter order is a misspelling in standard orthography.
  • 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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list