hypercorrection

hy•per•cor•rec•tion n. [Ling.]

Oceanography, Linguisticsthe substitution, in an inappropriate context, of a pronunciation, grammatical form, or usage thought by the speaker or writer to be appropriate, resulting usually from overgeneralizing in an effort to replace seemingly incorrect forms with correct ones, as the substitution of between you and I for between you and me, by analogy with you and I as the subject of a sentence.
Oceanography, Linguisticsthe form so substituted. Cf. hyperform, hyperurbanism.

Collins Concise English Dictionary © HarperCollins Publishers::

hypercorrection /ˌhaɪpəkəˈrɛkʃən/ n

a mistaken correction to text or speech made through a desire to avoid nonstandard pronunciation or grammar: 'between you and I' is a hypercorrection of 'between you and me'

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