mortiferous

/mɔːˈtɪfəɹəs/

//mɔːˈtɪfəɹəs// adj

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

The verdict

“mortiferous” 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) - Causing spiritual death.

Corpus desk

Index EN-mortiferous · mortiferous · English

mortiferous · 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 "M" 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 mortiferous
PropertyValue
Headwordmortiferous
LanguageEnglish
Part of speechAdjective
IPA/mɔːˈtɪfəɹəs/
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “mortiferous” in English

mortiferoussits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

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

Our edit-distance generator produced no likely misspellings for mortiferous, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From Latin mortifer + -ous. The correct English form is mortiferous, spelled M-O-R-T-I-F-E-R-O-U-S.

Definition

  1. 1
    Causing spiritual death.
  2. 2
    Causing physical death; deadly, fatal, lethal.

Recorded use

Wiktionary example

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

  1. Breton recruits were notorious for suffering from la nostalgie – a mortiferous form of homesickness.

Etymology

From Latin mortifer + -ous.

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 "mortiferous"?
"mortiferous" is spelled M-O-R-T-I-F-E-R-O-U-S. The IPA pronunciation is /mɔːˈtɪfəɹəs/.
What does "mortiferous" mean?
As an adjective, "mortiferous" means: Causing spiritual death.
How do you pronounce "mortiferous"?
The IPA (International Phonetic Alphabet) transcription for "mortiferous" is /mɔːˈtɪfəɹəs/. 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 "mortiferous"?
From Latin mortifer + -ous. 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