Inflected forms: Past tense might ( mt) 1. To be allowed or permitted to: May I take a swim? Yes, you may.2. Used to indicate a certain measure of likelihood or possibility: It may rain this afternoon.3. Used to express a desire or fervent wish: Long may he live!4. Used to express contingency, purpose, or result in clauses introduced by that or so that: expressing ideas so that the average person may understand.5. To be obliged; must. Used in statutes, deeds, and other legal documents. See Usage Note at can1.
ETYMOLOGY:
Middle English, to be able, from Old English mæg, first and third person sing. of magan, to be strong, be able. See magh- in Appendix I.