Lewis & Short

candĭdo, āvi, 1, v. a. [candidus], to make glittering or bright, to make white (eccl. Lat.): vestimenta sua, Tert. adv. Gnost. 12: albis vestibus candidari, Aug. Ep. 168.
P. a.: candĭdans, antis, brilliantly white, Isid. Orig. 14, 8, 21; cf. 1. candidatus, I. A.