forever and a day

adv

"forever-and-a-day" is a 14-letter English headword indexed on PlainSpell.

The verdict

“forever and a day” is uncommon English (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.

Unranked
below top-frequency English
17
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - For a very long or seemingly endless time.

Corpus desk

Index EN-forever-and-a-day · forever and a day · English

forever and a day · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 17 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "F" thin
  • PHOTO-UNK Peer pending

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.

Key facts for forever and a day
PropertyValue
Headwordforever and a day
LanguageEnglish
Part of speechAdverb
Letters17
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “forever and a day” in English

forever and a dayfalls 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.

Rare enough to double-check

forever and a day is uncommon English outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. Gloss: "For a very long or seemingly endless time.".

forever and a day has no tracked misspelling variants, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Possibly a folk-etymological alteration of forever and ay. The correct English form is forever and a day, spelled F-O-R-E-V-E-R- -A-N-D- -A- -D-A-Y.

Definition

  1. 1
    For a very long or seemingly endless time.

Recorded use

Wiktionary examples

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

  1. I'll love you forever and a day.
  2. If this be not that you looke for, I haue no more to ſay, / But bid Bianca farewell for euer and a day.

Etymology

Possibly a folk-etymological alteration of forever and ay.

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 "forever and a day"?
"forever and a day" is spelled F-O-R-E-V-E-R- -A-N-D- -A- -D-A-Y.
What does "forever and a day" mean?
As an adverb, "forever and a day" means: For a very long or seemingly endless time.
What is the origin of the word "forever and a day"?
Possibly a folk-etymological alteration of forever and ay. 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.

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

Source: FrequencyWords open word-frequency list