Lewis & Short

tŭĭtĭo, ōnis, f. [tueor, II.], a taking care of, keeping, guarding, preserving, defense, protection, preservation; with gen. subj. praetoris, Dig. 7, 4, 1 pr.; with gen. obj.: tuitio sui, Cic. Top. 23, 90: pudoris, Macr. S. 2, 2 med.; Dig. 37, 11, 2; 7, 9, 9: militaris, Cod. Just. 1, 46, 1: aedium, Hier. in Isa. 16, 57, 7.