n. pl. eu·pat·ri·dae (-rĭ-dē′) or eu·pat·rids A member of the hereditary aristocracy of ancient Athens. [Greek eupatridēs : eu-, eu- + patēr, patr-, father; see pəter- in the Appendix of Indo-European roots + -idēs, patronymic suff.] eu·patrid adj. |
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