Lewis & Short

mingo, inxi, inctum and ictum, 3, v. a. [root mig, whence also meio; cf. also the Greek ὀ μιχέω], to make water, to void urine: in me veniant mictum atque cacatum, Hor S 1, 8, 38: urina mingitur, Cels. 4, 20: ut quantum bibisset, tantum mingeret, Vop ap Bon. 14; Juv. 3, 107.
In mal. part., Cat. 67, 30.