Lewis & Short

sŭperstĭto, āre, v. a. and n. [superstes].

  1. * I. Act., to keep alive, preserve: regnumque nostrum ut sospitent superstitentque, Enn. ap. Non. 170, 14; 176, 3 (Trag. v. 331 Vahl.).
  2. * II. Neutr., to be over or remaining: ut mihi supersit, suppetat, superstitet, Plaut. Pers. 3, 1, 3.