eruca

noun

"eruca" is a 5-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
5
letters

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

Corpus desk

Index EN-eruca · eruca · English

eruca · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 5 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "E" 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 eruca
PropertyValue
Headworderuca
LanguageEnglish
Part of speechNoun
Letters5
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “eruca” in English

erucaranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

eruca is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for eruca in our index, since its letter sequence doesn't invite the usual edit-distance slips. Our dataset records no confusable match here, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Borrowed from Latin eruca, in its senses of "caterpillar" and "colewort" respectively. Cognate with arugula, rucola, rocket, roquette. The correct English form is eruca, spelled E-R-U-C-A.

Definition

  1. 1
    Caterpillar; larva.
  2. 2
    Arugula: rocket.

Recorded use

Wiktionary examples

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

  1. The eruca, or rocket, so called from the Greek, […] was had in so great esteem heretofore, as to its efficacy in conjugal performances, that many of the antient authors, both in poetry and prose, make mention of it purely for that purpose:[…]
  2. Eruca, or Garden Rocket, was formerly much used as a salad herb, but has been long rejected on account of its ungrateful smell.

Etymology

Borrowed from Latin eruca, in its senses of "caterpillar" and "colewort" respectively. Cognate with arugula, rucola, rocket, roquette.

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 "eruca"?
"eruca" is spelled E-R-U-C-A.
What does "eruca" mean?
As a noun, "eruca" means: Caterpillar; larva.
What is the origin of the word "eruca"?
Borrowed from Latin eruca, in its senses of "caterpillar" and "colewort" respectively. Cognate with arugula, rucola, rocket, roquette. 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