suppletion
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sup·ple·tion
 (sə-plē′shən)n. Linguistics
The use of an unrelated form to complete a paradigm, as the past tense went of the verb go, goes, going, gone.
[From Latin supplētus, past participle of supplēre, to supply; see supply.]
sup·ple′tive adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
suppletion
(sÉËpliËÊÉn)n
(Linguistics) the use of an unrelated word to complete the otherwise defective paradigm of a given word, as for example the use of went for the past tense of go
[C14: from Medieval Latin supplÄtiÅ a completing, from Latin supplÄre to supply1]
supËpletive n, adj
Collins English Dictionary â Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
sup•ple•tion
(səˈpli ʃən)n.
the use in inflection or derivation of a form that is not related to the primary form of a word, as the use of better as the comparative of good or went as the past tense of go.
[1275–1325; Middle English: completion < Medieval Latin supplētiō= Latin supplē(re) (see supplement) + -tiō -tion]
sup•ple•tive (səˈpli tɪv, ˈsʌp lɪ tɪv) adj.
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