fīdūcĭo — Lewis & Short
fīdūcĭo, āvi, ātum, 1, v. a.fiducia,
I to pledge, mortgage:
EA CONDITIONE, NE FIDVCIENT, NE VENDANT, NEVE ALIO QVO GENERE ID SEPVLCRVM ALIENARE VLLA POTESTAS SIT,Inscr. Grut. 638, 4; id. Murat. 794, 1; cf. FIDVCIAT, u(poti/qetai; FIDVCIATVS, u(potiqe/menos, Gloss. Philox.:
sub pignoribus fiduciati,Tert. Idol. 23.