n. pl. dy·nas·ties 1. A succession of rulers from the same family or line. 2. A family or group that maintains power for several generations: a political dynasty controlling the state. [Middle English dynastie, from Old French, from Late Latin dynastīa, lordship, from Greek dunasteia, from dunastēs, lord; see DYNAST.] dy·nastic (dī-năstĭk) adj. dy·nasti·cal·ly adv. |
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