subsessa

ae, f.

subsido

I. an ambush, ambuscade (post-class.): subsessas occultius collocare, Veg. Mil. 3, 6 med.: in subsessā esse, id. ib. 3, 22; cf.: hostium dolos subsessas vocamus, Serv. Verg. A. 11, 268.
Lewis & Short
A Latin Dictionary, 1879
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