internecine

/ˌɪntəˈniːsaɪn/

//ˌɪntəˈniːsaɪn// adj

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

The verdict

“internecine” is uncommon English (frequency #68,324 among 17,902 “I” headwords), classed as an adjective. The kind of spelling people second-guess.

#68,324
frequency rank, English
17,902
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Mutually destructive; most often applied to warfare.

Key facts for internecine
PropertyValue
Headwordinternecine
LanguageEnglish
Part of speechAdjective
IPA/ˌɪntəˈniːsaɪn/
Letters11
Frequency rank#68,324
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “internecine” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). internecine lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

internecine is uncommon English at frequency #68,324 among 17,902 “I” headwords, classed as anadjective, transcribed /ˌɪntəˈniːsaɪn/. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for internecine in our index, typically a sign the spelling maps closely to how the word sounds. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Borrowed from Latin internecīnus (“deadly”), from internecium (“a massacre, bloodbath; an eradication”) + -īnus. In Latin, the sememe 'between' was here not expressed by the prefix, it instead either had a somewhat emphatic meaning or meant "down, under", c… The correct English form is internecine, spelled I-N-T-E-R-N-E-C-I-N-E.

Definition

  1. 1
    Mutually destructive; most often applied to warfare.
  2. 2
    Characterized by struggle within a group, usually applied to an ethnic or familial relationship.

Etymology

Borrowed from Latin internecīnus (“deadly”), from internecium (“a massacre, bloodbath; an eradication”) + -īnus. In Latin, the sememe 'between' was here not expressed by the prefix, it instead either had a somewhat emphatic meaning or meant "down, under", comparable to its use in other Latin terms related to death: see interficiō and intereō. The English current sense is thus a reanalysis of the Latin through English inter-.

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); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "internecine"?
"internecine" is spelled I-N-T-E-R-N-E-C-I-N-E. The IPA pronunciation is /ˌɪntəˈniːsaɪn/.
What does "internecine" mean?
As an adjective, "internecine" means: Mutually destructive; most often applied to warfare.
How do you pronounce "internecine"?
The IPA (International Phonetic Alphabet) transcription for "internecine" is /ˌɪntəˈniːsaɪn/. 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 "internecine"?
Borrowed from Latin internecīnus (“deadly”), from internecium (“a massacre, bloodbath; an eradication”) + -īnus. In Latin, the sememe 'between' was here not expressed by the prefix, it instead either had a somewhat emphatic meaning or meant "down,... 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.

Using “internecine”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is I-N-T-E-R-N-E-C-I-N-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌɪntəˈniːsaɪn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list