Casimir

/ˈkæzɪmɪɚ/

//ˈkæzɪmɪɚ// name

By · According to Wiktionary data (CC BY-SA) ·

"casimir" is a 7-letter English headword indexed on PlainSpell.

The verdict

“Casimir” is uncommon English (frequency #58,587 among 5,599 “C” headwords), classed as a proper noun. The kind of spelling people second-guess.

#58,587
frequency rank, English
5,599
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A male given name from Polish.

Corpus desk

Index EN-casimir · Casimir · English

Casimir · rank #58,587 · 0 variants · 0 confusables

  • FREQ-RARE #58,587
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH Carstairs

Nearest frequency peer: Carstairs (-1 rank slots)

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.

Long-tail ranks near “Casimir”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “Casimir” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for Casimir
PropertyValue
HeadwordCasimir
LanguageEnglish
Part of speechProper noun
IPA/ˈkæzɪmɪɚ/
Letters7
Frequency rank#58,587
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “Casimir” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).Casimirfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “Carstairs” (#58,586), “Catawba” (#58,588), “Caterham” (#58,589). Among 5,599 “C” headwords, “Casimir” is #58,587. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Casimir is uncommon English at frequency #58,587 among 5,599 “C” headwords, classed as aproper noun, transcribed /ˈkæzɪmɪɚ/. Rarity is why readers land here mid-draft. Gloss: "A male given name from Polish.".

Our edit-distance generator produced no likely misspellings for Casimir, since its letter sequence doesn't invite the usual edit-distance slips. 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: From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace". The correct English form is Casimir, spelled C-A-S-I-M-I-R.

Definition

  1. 1
    A male given name from Polish.

Recorded use

Wiktionary example

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

  1. - Babushka wants you to call the poor little bugger Casimir after her uncle in the Resistance. Can you imagine what would happen in any schoolyard to a kid with a name like Casimir?

Etymology

From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace".

This word in other languages

Casimiro(Español)Casimir(Français)Kasimir(Deutsch)

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

How do you spell "Casimir"?
"Casimir" is spelled C-A-S-I-M-I-R. The IPA pronunciation is /ˈkæzɪmɪɚ/.
What does "Casimir" mean?
As a proper noun, "Casimir" means: A male given name from Polish.
How do you pronounce "Casimir"?
The IPA (International Phonetic Alphabet) transcription for "Casimir" is /ˈkæzɪmɪɚ/. 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 "Casimir"?
From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace". 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "Casimir", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Catawba#58,588civilly#58,595clinker#58,600clotted#58,602

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

Source: FrequencyWords open word-frequency list