whilom

/ˈwaɪləm/

//ˈwaɪləm// adv

"whilom" is a 6-letter English headword indexed on PlainSpell.

The verdict

“whilom” is outside the top-ranked English vocabulary, used as an adverb - the kind of word writers most often double-check.

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - At some time in the past; formerly, once upon a time.

Key facts for whilom
PropertyValue
Headwordwhilom
LanguageEnglish
Part of speechAdverb
IPA/ˈwaɪləm/
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “whilom” sits in English frequency

whilom falls 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.

Spelling & Dictionary Insight

The English entry for whilom is 6 letters long, classified as an adverb, and transcribed in the International Phonetic Alphabet as /ˈwaɪləm/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

whilom has no tracked misspelling variants, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From Middle English whilom (“(adverb) at one time, formerly, once; once upon a time; at times, sometimes; at a future time; (conjunction) while”) [and other forms], from Old English hwīlum, hwīlan, hwīlon (“at one time, once; sometimes”), from Proto-West Ge… The correct English form is whilom, spelled W-H-I-L-O-M.

Definition

  1. 1
    At some time in the past; formerly, once upon a time.
  2. 2
    At times, on occasion, sometimes.
  3. 3
    Preceded by of or this: for some time that has passed.

Etymology

From Middle English whilom (“(adverb) at one time, formerly, once; once upon a time; at times, sometimes; at a future time; (conjunction) while”) [and other forms], from Old English hwīlum, hwīlan, hwīlon (“at one time, once; sometimes”), from Proto-West Germanic *hwīlum, the dative plural of *hwīlu (“period of time, time, while; period of rest, pause”), from Proto-Germanic *hwīlō (“period of time, time, while; period of rest, pause”), from Proto-Indo-European *kʷyeh₁- (“to rest; peace, rest”). The Oxford English Dictionary regards adverb sense 2.2 (“for some time that has passed”) as “aberrant”. Cognates * Old High German hwīlōn (Middle High German wīlen, wīlent, German weiland (“at one time, formerly”)) * Old Saxon hwīlon (“sometimes”) (Middle Dutch wilen, Middle Low German wilen (“at one time, formerly”), Dutch wijlen (“deceased, late”))

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 "whilom"?
"whilom" is spelled W-H-I-L-O-M. The IPA pronunciation is /ˈwaɪləm/.
What does "whilom" mean?
As an adverb, "whilom" means: At some time in the past; formerly, once upon a time.
How do you pronounce "whilom"?
The IPA (International Phonetic Alphabet) transcription for "whilom" is /ˈwaɪləm/. 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 "whilom"?
From Middle English whilom (“(adverb) at one time, formerly, once; once upon a time; at times, sometimes; at a future time; (conjunction) while”) [and other forms], from Old English hwīlum, hwīlan, hwīlon (“at one time, once; sometimes”), from Pro... 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.

Using “whilom”

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

  • The one correct English spelling is W-H-I-L-O-M - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈwaɪləm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words
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