v.intr.
1. (often foll. by at, over) be in a position of authority, esp. as the chairperson or president of a meeting.
2 a exercise control or authority. b (foll. by at) colloq. play an instrument in company (presided at the piano).
Etymology: F pr{eacute}sider f. L praesidere (as PRAE-, sedere sit)