suppletion


sup·ple·tion

noun \sə-ˈplē-shən\

Definition of SUPPLETION

:  the occurrence of phonemically unrelated allomorphs of the same morpheme (as went as the past tense of go or better as the comparative form of good)
sup·ple·tive \sə-ˈplē-tiv, ˈsə-plə-\ adjective

Origin of SUPPLETION

Medieval Latin suppletion-, suppletio act of supplementing, from Latin supplēre
First Known Use: 1914

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