Lewis & Short

crŭcĭābĭlis, e, adj. [crucio],

  1. I. tormenting, torturing, painful, excruciating, miserable (rare; not in Cic.): cruciabilem me accipito, Plaut. Ps. 4, 1, 40 Ritschl: exitu periit, Gell. 3, 9, 7; cf. mors, Arn. adv. Gent. 2: silentio fatigatus, App. M. 10, p. 239, 20.
  2. II. Susceptible of torture: animae, Lact. 7, 20, 9.
    Adv.: crŭcĭābĭlĭter, with torture, Plaut. Ps. 4, 1, 40 Fleck., Lorenz: interfecti, Auct. B. Afr. 46.