pestiferous

/ˌpɛsˈtɪfəɹəs/

//ˌpɛsˈtɪfəɹəs// adj

"pestiferous" is a 11-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - containing organisms that cause contagious diseases

Corpus desk

Index EN-pestiferous · pestiferous · English

pestiferous · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-5 5 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 pestiferous
PropertyValue
Headwordpestiferous
LanguageEnglish
Part of speechAdjective
IPA/ˌpɛsˈtɪfəɹəs/
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “pestiferous” in English

pestiferousranks 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

pestiferous is uncommon English outside the top frequency list, classed as anadjective, transcribed /ˌpɛsˈtɪfəɹəs/. Rarity is why readers land here mid-draft. 2 senses are on record.

The misspelling generator found no plausible variants for pestiferous, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: Mid 15th century, in sense “mischievous, pernicious”, from Latin pestiferus (“bearing plague”), from pestifer, from pestis (“plague”) + ferre (“carry”) (see infer). By surface analysis, pest + -i- (“bearing, carrying”) + -ferous. The correct English form is pestiferous, spelled P-E-S-T-I-F-E-R-O-U-S.

Definition

  1. 1
    containing organisms that cause contagious diseases
  2. 2
    annoying, vexatious

Recorded use

Wiktionary examples

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

  1. because he hath vouchsafed to preserue our nation from such fountains, from serpents and venemous wormes, & from al other pestiferous & contagious creatures.
  2. In these solemn moments man discovers the germ of those vices, which like the Java tree shed a pestiferous vapour around--death is in the shade!

Etymology

Mid 15th century, in sense “mischievous, pernicious”, from Latin pestiferus (“bearing plague”), from pestifer, from pestis (“plague”) + ferre (“carry”) (see infer). By surface analysis, pest + -i- (“bearing, carrying”) + -ferous.

Synonyms

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 "pestiferous"?
"pestiferous" is spelled P-E-S-T-I-F-E-R-O-U-S. The IPA pronunciation is /ˌpɛsˈtɪfəɹəs/.
What does "pestiferous" mean?
As an adjective, "pestiferous" means: containing organisms that cause contagious diseases
How do you pronounce "pestiferous"?
The IPA (International Phonetic Alphabet) transcription for "pestiferous" is /ˌpɛsˈtɪfəɹəs/. 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 "pestiferous"?
Mid 15th century, in sense “mischievous, pernicious”, from Latin pestiferus (“bearing plague”), from pestifer, from pestis (“plague”) + ferre (“carry”) (see infer). By surface analysis, pest + -i- (“bearing, carrying”) + -ferous. See the full etymology section above for more details.
Is PlainSpell free to use?
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list