de longue date

\də lɔ̃ɡ dat\

/\də lɔ̃ɡ dat\/ adj

The verdict

“de longue date” is uncommon French (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency French
14
letters

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

Corpus desk

Index FR-de-longue-date · de longue date · French

de longue date · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" 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 de longue date
PropertyValue
Headwordde longue date
LanguageFrench
Part of speechAdjective
IPA\də lɔ̃ɡ dat\
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « de longue date » en français

de longue datereste 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

de longue date is uncommon French outside the top frequency list, classed as anadjective, transcribed \də lɔ̃ɡ dat\. Rarity is why readers land here mid-draft. Gloss: "Ancien.".

Zero misspellings are on record for de longue date in our index, suggesting the orthography follows predictable French patterns. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This entry's etymology isn't recorded, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is de longue date, spelled D-E- -L-O-N-G-U-E- -D-A-T-E.

Definition

  1. 1
    Ancien.

Recorded use

Wiktionary examples

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

  1. Inutile de te dire, en effet, qu'on ne s'engageait pas au hasard, et que le choix de la région où devaient s'élever nos usines était l'œuvre d'experts qui avaient étudié la question de longue date, et qui n'étaient pas précisément des enfants.
  2. Ni tout à fait maîtresse en titre ni tout à fait femme entretenue, la jeune baronne F. (elle a repris son appellation familiale à elle) tient dans la vie de ce grand homme d’affaires une place considérable, mais il ne lui déplaît pas qu’elle ait ses mois, et même ses saisons libres, escortée par quelques admirateurs, presque tous de longue date, et qui so…

This word in other languages

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 "de longue date"?
"de longue date" is spelled D-E- -L-O-N-G-U-E- -D-A-T-E. The IPA pronunciation is \də lɔ̃ɡ dat\.
What does "de longue date" mean?
As an adjective, "de longue date" means: Ancien.
How do you pronounce "de longue date"?
The IPA (International Phonetic Alphabet) transcription for "de longue date" is \də lɔ̃ɡ dat\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "de longue date" come from?
"de longue date" 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