ussahati

to be able, to be fit for, to dare, venture Vin.i.47, Vin.i.83; Vin.ii.208; Vin.iii.17; DN.i.135; SN.iv.308, SN.iv.310; Mil.242; Vv-a.100
caus ussāheti (see pp. ussāhita).

ud + sah, cp. BSk. utsaha Jtm.215; utsahetavya Divy.494; utsahana Divy.490; ucchahate for utsahate Avs.ii.21