Lewis Short
fustŭārĭum (noun N) : fustis
* A cudgelling to death, a military punishment for desertion or other capital offences: fustuarium meruerunt legiones, quae consules reliquerunt,Cic. Phil. 3, 6, 14; Liv. 5, 6, 14 Drak.; id. Fragm. ap. Serv. Verg. A. 6, 825; cf. Dict. of Antiq. p. 464.
Charlton T. Lewis, Charles Short, A Latin Dictionary