ero

adj

The verdict

“ero” is uncommon French (frequency #94,779 among 3,255 “E” headwords), classed as an adjective. The kind of spelling people second-guess.

#94,779
frequency rank, French
3,255
“E” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Fou, insensé, cinglé, dingue.

Corpus desk

Index FR-ero · ero · French

ero · rank #94,779 · 0 variants · 0 confusables

  • FREQ-RARE #94,779
  • LEN-MID 3 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,255
  • PHOTO-FINISH escrimeurs

Nearest frequency peer: escrimeurs (+2 rank slots)

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.

Rangs de longue queue près de « ero »

Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court

corpus weight

What this shows Vue de longue queue: où « ero » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for ero
PropertyValue
Headwordero
LanguageFrench
Part of speechAdjective
Letters3
Frequency rank#94,779
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « ero » en français

Cette échelle va du noyau du français courant (gauche) jusqu'à la traîne des formes rares (droite).erotombe dans cette queue de rareté:

#1#100#1K#10K#100K
← used constantlyrarely used →

L'échelle est logarithmique (chaque tic ≈ 10× plus rare). Voisins rares de la même bande: « escrimeurs » (#94,781), « envoleront » (#94,776), « esme » (#94,782). Parmi 3,255 lemmes en « E », « ero » est au #94,779. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

ero is uncommon French at frequency #94,779 among 3,255 “E” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for ero, which points to an orthography that plays by predictable French rules. We don't track a confusable pairing for this entry, which typically means the spelling is too distinctive to be mistaken for another word.

No explicit etymology string is stored for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is ero, spelled E-R-O.

Definition

  1. 1
    Fou, insensé, cinglé, dingue.
  2. 2
    Irrationnel, inconscient.

Recorded use

Wiktionary examples

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

  1. Hitz eroak, de folles paroles.
  2. Amets eroak, des rêves extravagants.

Synonyms

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "ero"?
"ero" is spelled E-R-O.
What does "ero" mean?
As an adjective, "ero" means: Fou, insensé, cinglé, dingue.
What language does "ero" come from?
"ero" is a French 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.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "ero", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 3 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list