peta-

/ˈpɛtə/

//ˈpɛtə// prefix

"peta" is a 4-letter English headword indexed on PlainSpell.

The verdict

“peta-” is uncommon English (outside the top frequency list), classed as a prefix. 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) - In the metric system, multiplying the unit to which it is attached by 10¹⁵ (a short scale quadrillion or long scale billiard). Symbol: P

Corpus desk

Index EN-peta · peta- · English

peta- · 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 "P" 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 peta-
PropertyValue
Headwordpeta-
LanguageEnglish
Part of speechPrefix
IPA/ˈpɛtə/
Letters5
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “peta-” in English

peta-ranks 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

peta- is uncommon English outside the top frequency list, classed as aprefix, transcribed /ˈpɛtə/. Rarity is why readers land here mid-draft. Gloss: "In the metric system, multiplying the unit to which it is attached by 10¹⁵ (a short scale quadrillion or long scale billiard). Symbol: P".

peta- has no tracked misspelling variants, suggesting the orthography follows predictable English patterns. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Based on penta- (“five”) (from Ancient Greek πέντε (pénte)) with the middle letter removed, analogous to tera-. The correct English form is peta-, spelled P-E-T-A--.

Definition

  1. 1
    In the metric system, multiplying the unit to which it is attached by 10¹⁵ (a short scale quadrillion or long scale billiard). Symbol: P

Etymology

Based on penta- (“five”) (from Ancient Greek πέντε (pénte)) with the middle letter removed, analogous to tera-.

Antonyms

This word in other languages

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 "peta-"?
"peta-" is spelled P-E-T-A--. The IPA pronunciation is /ˈpɛtə/.
What does "peta-" mean?
As a prefix, "peta-" means: In the metric system, multiplying the unit to which it is attached by 10¹⁵ (a short scale quadrillion or long scale billiard). Symbol: P
How do you pronounce "peta-"?
The IPA (International Phonetic Alphabet) transcription for "peta-" is /ˈpɛtə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "peta-"?
Based on penta- (“five”) (from Ancient Greek πέντε (pénte)) with the middle letter removed, analogous to tera-. 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