Infix

//ɪnˈfɪks// noun, verb

noun, verb ·Moderate ·High school level

Definitions

Noun
  1. 1
    An affix inserted inside a root, such as -ma- in English edumacation.

    "I am not pleased with one or two of the noun cases (they are too similar to others) and I want to change the way that the Focus category (see Section 3.5 of the grammar) is manifested (using word-order instead of an infix or other phonological marker). All in all, the language is structured almost exactly as I wanted."

  2. 2
    an affix that is inserted inside the word wordnet
  3. 3
    A prefix that is not at the beginning of a word, such as the con- of reconcile, or a suffix that is not at the end of a word, such as the -al of nationality.

    "The infix position contains (pronominal) object markers, showing agreement with the object(s), which might be one or more noun phrases following the verb, or a foregoing or previously mentioned object marking."

  4. 4
    A prefix that always occurs in the position immediately before the verb root, and which may in turn be preceded by other prefixes. dated
  5. 5
    Synonym of interfix. proscribed
Verb
  1. 1
    To set; to fasten or fix by piercing or thrusting in. archaic, transitive

    "to infix a sting, spear, or dart"

  2. 2
    attach a morpheme into a stem word wordnet
  3. 3
    To instill. transitive
  4. 4
    put or introduce into something wordnet
  5. 5
    To insert a morpheme inside an existing word. transitive

Antonyms

All antonyms

Example

More examples

"to infix a sting, spear, or dart"

Etymology

Back-formation from Middle English infixed (“stuck in”), from Latin infixus, past participle of infigō (“to fasten in”).

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.