prae-consūmo, no perf., sumptum, 3, v. a.,
to waste or spend beforehand (Ovid.): suas vires bello, Ov. M. 7, 489; id. Tr. 4, 6, 30.
prae-cōnsūmō —, sūmptus, ere, to waste in advance, spend beforehand: suas virīs bello, O. ...
An Elementary Latin Dictionary