Definitions

1. noun

A word or form that has a different root but the same grammatical function as another word or form in a language, often used in a particular grammatical context.

“The verb ‘go’ has suppletive forms, including ‘went’, ‘gone’, and ‘going’.”

2. adjective

Relating to or characteristic of a word or form that has a different root but the same grammatical function as another word or form in a language.

“This linguistic phenomenon is a key characteristic of suppletive verb forms.”