Infixation is a morphological process in which a language inserts a bound morpheme — an infix — into the interior of a word stem, splitting the stem into two parts that bracket the inserted element. Three parameters carve the construct: (1) the inserted material is a bound morpheme, not an independent word — this is what separates infixation from tmesis, which inserts a grammatically independent word into the same interior position; (2) the insertion occurs at a fixed morphophonological position within the stem (a specific boundary or segment), so the process is a rule of the grammar rather than a free choice of the speaker; (3) the host stem retains its lexical identity, and the infixed form remains analyzable as a variant of that stem. Paradigmatic cases: Tagalog actor-focus infix -um- (kain 'to eat' → k-um-in 'to eat'), and the frequently cited but disputed English -ab- (ab-sent, ab-sole). Infixation persists two ways: as a productive rule — speakers of a language coin new infixed forms on the fly, and the rule survives as long as it is applied — and as a stable category of description — grammars, morphology textbooks, and formal rule specifications continue to state where the infix attaches and what it marks. [formal: infixatio | substrate: mind | horizon: generations | explicit: yes | epoch: 0.01]
Accepted ontology entry
infixation
Infixation is a morphological process in which a language inserts a bound morpheme — an infix — into the interior of a word stem, splitting the stem into two parts that bracket the inserted element. Three parameters carve the construct: (1…
Definition
Why it is in scope
Infixation is a human-made morphological operation — the process by which a language inserts a bound morpheme into the interior of a word stem — built to persist as a productive rule in the grammar of the languages that have it and as a stable category of morphological theory.
Names and aliases
- infixationen · CANONICAL
Relations from this entry
- affixationINSTANCE_OF →
Infixation is the specific process of inserting a morpheme within the interior of a word stem. It is a subtype of affixation — the nearest kind is affixation: a competent speaker classifies infixation as a kind of affixation.
- stemDEPENDS_ON →
Pinned sense: infixation as the operation inserting a bound morpheme into the interior of a word stem. Removal test (Laws 2b/8b): remove stems — the word whose interior hosts the inserted material — and there is nothing to insert into; the process stops operating. Constitutive dependency on the host material; not a sayability or cognition claim.
- word-formationINSTANCE_OF →
INSTANCE_OF: infixation is a specific kind of word-formation process — the general class into which tmesis is also an instance. Specific→general per Law 9.
- infixDEPENDS_ON →
Infixation is the process of inserting an infix (a type of affix) into the interior of a word stem. Removal test (Laws 8/8b): remove infix — the bound morpheme that infixation inserts — and the process loses its operational target. Infixation operates on infixes; without them, there is nothing to insert. Constitutive dependency.
- morphemeDEPENDS_ON →
infixation DEPENDS_ON morpheme: infixation operates by inserting an infix (a type of morpheme) into a word stem. Remove morphemes — the units that infixation manipulates — and the process cannot operate. This is a constitutive dependency, not a meta-level sayability claim.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Sep 26, 2026, 5:45 PM UTC
- Content hash
- aafe7674e9e03e916c1dd869ba54ab4687cc953a3d1c79f7f7b31a182a533040