froth up

verb

"froth-up" is a 7-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To become frothy; to rise with a frothy surface or covered with something resembling froth.

Corpus desk

Index EN-froth-up · froth up · English

froth up · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-2 2 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 froth up
PropertyValue
Headwordfroth up
LanguageEnglish
Part of speechVerb
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “froth up” in English

froth upfalls 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

froth up is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "To become frothy; to rise with a frothy surface or covered with something resembling froth.".

No generated misspelling entries exist for froth up in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is froth up, spelled F-R-O-T-H- -U-P.

Definition

  1. 1
    To become frothy; to rise with a frothy surface or covered with something resembling froth.

Recorded use

Wiktionary examples

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

  1. The Spirit mourn'd "Adieu!"—dissolv’d, and left / The atom darkness in a slow turmoil; / As when of healthful midnight sleep bereft, / Thinking on rugged hours and fruitless toil, / We put our eyes into a pillowy cleft, / And see the spangly gloom froth up and boil: / It made sad Isabella’s eyelids ache, / And in the dawn she started up awake; [...]
  2. ‘Then fetch me some,’ said the Whale, and he made the sea froth up with his tail.

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 "froth up"?
"froth up" is spelled F-R-O-T-H- -U-P.
What does "froth up" mean?
As a verb, "froth up" means: To become frothy; to rise with a frothy surface or covered with something resembling froth.
What language does "froth up" come from?
"froth up" is a English 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