ecto-

\ɛk.to\

/\ɛk.to\/ prefix

The verdict

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

Unranked
below top-frequency French
5
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Préfixe indiquant une idée d’extérieur.

Corpus desk

Index FR-ecto · ecto- · French

ecto- · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "E" thin
  • PHOTO-UNK Peer pending

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 ecto-
PropertyValue
Headwordecto-
LanguageFrench
Part of speechPrefix
IPA\ɛk.to\
Letters5
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « ecto- » en français

ecto-siège au-delà des 100.000 formes les plus fréquentes du français, dans la traîne du lexique spécialisé ou peu usité.

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

Rare enough to double-check

ecto- is uncommon French outside the top frequency list, classed as aprefix, transcribed \ɛk.to\. Rarity is why readers land here mid-draft. Gloss: "Préfixe indiquant une idée d’extérieur.".

ecto- has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.

Wiktionary doesn't record an etymology for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is ecto-, spelled E-C-T-O--.

Definition

  1. 1
    Préfixe indiquant une idée d’extérieur.

Synonyms

Antonyms

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 "ecto-"?
"ecto-" is spelled E-C-T-O--. The IPA pronunciation is \ɛk.to\.
What does "ecto-" mean?
As a prefix, "ecto-" means: Préfixe indiquant une idée d’extérieur.
How do you pronounce "ecto-"?
The IPA (International Phonetic Alphabet) transcription for "ecto-" is \ɛk.to\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "ecto-" come from?
"ecto-" 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.

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

Source: FrequencyWords open word-frequency list