tr.v. de·ment·ed, de·ment·ing, de·ments 1. To cause (a person) to become mentally deranged. 2. To cause (a person) to lose intellectual capacity. [Late Latin dēmentāre, from Latin dēmēns, dēment-, senseless : dē-, de- + mēns, mind; see men-1 in the Appendix of Indo-European roots.] |
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