nixor

āri
I. dep. n. [1. nitor], to lean or rest upon; to strive, endeavor (poet.).
I. Lit., Lucr. 6, 836; 3, 1001: pars vulnere clauda retentat Nixantem (serpentem), Verg. A. 5, 279 Wagner N. cr.—
II. Trop., to depend upon: fundamenta, quibus nixatur vita salusque, Lucr. 4, 506.
Lewis & Short
A Latin Dictionary, 1879
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