Lewis & Short

crĕpundĭa, ōrum, n. [crepo], a rattle; and specif.,

  1. I. Most freq., a child’s rattle (cf. Ruhnk. ad Ter. Eun. 4, 6, 15), Plaut. Mil. 5, 6; id. Rud. 4, 4, 37; 5, 3, 7; id. Cist. 3, 5; 3, 4; 1, 4; Cic. Brut. 91, 313 Jahn ad loc.; Plin. 11, 51, 112, § 270.
    Hence, ‡ A CREPVNDIIS, from childhood, Inscr. Orell. 1183.
    1. B. An amulet, App. Mag. p. 310, 19.
  2. II. Rattling musical instruments, Just. 30, 1, 9.