onfall

noun

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

The verdict

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

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A falling on or upon; an attack, onset, or assault.

Corpus desk

Index EN-onfall · onfall · English

onfall · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 6 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "O" 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 onfall
PropertyValue
Headwordonfall
LanguageEnglish
Part of speechNoun
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “onfall” in English

onfallsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

onfall is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

Our edit-distance generator produced no likely misspellings for onfall, since its letter pattern doesn't lend itself to common typo substitutions. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Middle English onfal, onfalle, equivalent to on- + fall. Cognate with Dutch aanval (“an attack, assault”), German Anfall (“an attack, seizure, fit”), Swedish anfall (“an attack, offensive, assault”). Compare also Middle English onfallynge (“an onslaugh… The correct English form is onfall, spelled O-N-F-A-L-L.

Definition

  1. 1
    A falling on or upon; an attack, onset, or assault.
  2. 2
    A fall of rain or snow.
  3. 3
    The fall of the evening.

Recorded use

Wiktionary examples

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

  1. Are we to have military onfall; and death also by starvation?
  2. The onfall of the bishops had helped to wreck this possibility, [...]

Etymology

From Middle English onfal, onfalle, equivalent to on- + fall. Cognate with Dutch aanval (“an attack, assault”), German Anfall (“an attack, seizure, fit”), Swedish anfall (“an attack, offensive, assault”). Compare also Middle English onfallynge (“an onslaught, attack”).

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 "onfall"?
"onfall" is spelled O-N-F-A-L-L.
What does "onfall" mean?
As a noun, "onfall" means: A falling on or upon; an attack, onset, or assault.
What is the origin of the word "onfall"?
From Middle English onfal, onfalle, equivalent to on- + fall. Cognate with Dutch aanval (“an attack, assault”), German Anfall (“an attack, seizure, fit”), Swedish anfall (“an attack, offensive, assault”). Compare also Middle English onfallynge (“a... See the full etymology section above for more details.
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list