overderivation
Overderivation is a term used in linguistics to describe the application of a derivational morpheme beyond its ordinary productive domain, resulting in forms that are atypical, marked, or nonstandard. It can arise in first- or second-language acquisition, through analogy or processing simplification, or in historical change and computational modeling. The phenomenon is distinct from regular productive derivation in that it yields forms that are not ordinarily attested or accepted in the language.
Causes include analogy to existing derived forms, misperceived productivity of affixes, transfer from another language, or
In computational linguistics and NLP, overderivation can arise when morphological rules are too permissive, generating spurious
Overderivation is used as a diagnostic concept to probe the limits of derivational productivity and the interaction