cogito ergo sum

[ˈkoːɡitoː ˈɛrɡoː ˈsʊm]

/[ˈkoːɡitoː ˈɛrɡoː ˈsʊm]/ phrase

The verdict

“cogito ergo sum” is outside the top-ranked German vocabulary, used as a phrase - the kind of word writers most often double-check.

Unranked
below top-frequency German
15
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) — Zurückführung der Existenz auf die Fähigkeit des Denkens

Key facts for cogito ergo sum
PropertyValue
Headwordcogito ergo sum
LanguageGerman
Part of speechPhrase
IPA[ˈkoːɡitoː ˈɛrɡoː ˈsʊm]
Letters15
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “cogito ergo sum” sits in German frequency

cogito ergo sum falls outside the top-100,000 ranked German 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 German entry for cogito ergo sum is 15 letters long, classified as a phrase, and transcribed in the International Phonetic Alphabet as [ˈkoːɡitoː ˈɛrɡoː ˈsʊm]. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Zurückführung der Existenz auf die Fähigkeit des Denkens".

No misspelling variants are generated for cogito ergo sum in our index, suggesting the orthography follows predictable German patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct German form is cogito ergo sum, spelled C-O-G-I-T-O- -E-R-G-O- -S-U-M, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    Zurückführung der Existenz auf die Fähigkeit des Denkens

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.

Cite this page

Free to reuse with attribution (CC BY-SA). Copy the citation:

PlainSpell, “cogito ergo sum, German word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/de/wort/cogito-ergo-sum

Frequently Asked Questions

How do you spell "cogito ergo sum"?
"cogito ergo sum" is spelled C-O-G-I-T-O- -E-R-G-O- -S-U-M. The IPA pronunciation is [ˈkoːɡitoː ˈɛrɡoː ˈsʊm].
What does "cogito ergo sum" mean?
As a phrase, "cogito ergo sum" means: Zurückführung der Existenz auf die Fähigkeit des Denkens
How do you pronounce "cogito ergo sum"?
The IPA (International Phonetic Alphabet) transcription for "cogito ergo sum" is [ˈkoːɡitoː ˈɛrɡoː ˈsʊm]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "cogito ergo sum" come from?
"cogito ergo sum" is a German word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 “cogito ergo sum”

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

  • The one correct German spelling is C-O-G-I-T-O- -E-R-G-O- -S-U-M - every other letter order is a misspelling in standard orthography.
  • Say it as [ˈkoːɡitoː ˈɛrɡoː ˈsʊm] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more German words and confusable pairs in the same reference. German words

Nearby German words

Other entries that begin with the letter C in our German index:

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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