Lewis & Short

nancĭo, īre, v. a., and nancĭor, īri, v. dep. a. [root nac-, v. nanciscor], to get, gain, obtain (post-class.): si nanciam populi desiderium, Gracch. ap. Prisc. p. 888 P.: in foedere Latino: PECVNIAM QVIS NANCITOR (i. e. nancitur) HABETO, Paul. ex Fest. p. 166 Müll.