O / obsĭdĭor
verb deponent

obsĭdĭor

2nd PP obsĭdiāri
to lie in wait for, to waylay
to lie in wait for, to waylay one (perh. only postAug.): alicui, Col. 9, 14, 10.—(In Cic. Scaur. p. 40, instead of obsidietur, Mai. more correctly reads obsaepiatur; v. obsaepio.)