sommeil de mort

noun

The verdict

“sommeil de mort” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency French
15
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Très profond sommeil.

Corpus desk

Index FR-sommeil-de-mort · sommeil de mort · French

sommeil de mort · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 15 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

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 sommeil de mort
PropertyValue
Headwordsommeil de mort
LanguageFrench
Part of speechNoun
Letters15
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « sommeil de mort » en français

sommeil de mortreste hors des 100.000 mots français les plus fréquents, dans la longue queue du vocabulaire technique, archaïque ou rare, là où le doute d'orthographe frappe.

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

Rare enough to double-check

sommeil de mort is uncommon French outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Très profond sommeil.".

No generated misspelling entries exist for sommeil de mort in our index, suggesting the orthography follows predictable French patterns. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

No explicit etymology string is stored for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is sommeil de mort, spelled S-O-M-M-E-I-L- -D-E- -M-O-R-T.

Definition

  1. 1
    Très profond sommeil.

Recorded use

Wiktionary example

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

  1. Le village s’endormait d’un lourd sommeil de mort.

Synonyms

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 "sommeil de mort"?
"sommeil de mort" is spelled S-O-M-M-E-I-L- -D-E- -M-O-R-T.
What does "sommeil de mort" mean?
As a noun, "sommeil de mort" means: Très profond sommeil.
What language does "sommeil de mort" come from?
"sommeil de mort" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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