Lewis Short
armārĭum (noun N) : arma
* A closet, chest, or safe, for food, clothing, money, etc.: armarium promptuarium,Cato, R. R. 11, 3: reclusit armarium,Plaut. Capt. 4, 4, 10; id. Men. 3, 3, 8; id. Ep. 2, 3, 3: cum esset in aedibus armarium, in quo sciret esse nummorum aliquantum et auri,Cic. Clu. 64; so id. Cael. 21, 52; Cic. Verr. 2, 4, 12: repositus in arcis armariisque,Plin. 29, 5, 32, § 101; Dig. 33, 10, 3: armarium muricibus praefixum,the box, set with sharp spikes, in which Regulus was put to death,Gell. 6, 4 fin.
Charlton T. Lewis, Charles Short, A Latin Dictionary