back-formation

n. the creation of a new word on the mistaken assumption that an existing word must be derived from it. This usually involves the elimination of an apparent affix or inflection, as in the creation of the verb enthuse from enthusiasm. The term is also applied to a word formed in this way. Also called inverse derivation; retrogressive formation. See also clipping.

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Psychology term of the day

February 1st 2025

Psychometric Society

an international nonprofit professional organization founded in 1935 to promote the advancement of quantitative measurement practices in psychology, education, and the social sciences. It publishes the journal Psychometrika.