Lewis Short
armŏrăcĭa | armŏrăcĕa, ii | armŏ-răcium (noun F.n) = ἀρμορακία: f. (, Col. 6, 17, 8; Pall. 4, 9, 5; 11, 11, 4: , , n., Col. 12, 9 fin.)
* Horseradish: Cochlearia armoracia, Linn.; Col. 9, 4, 5; 20, 4, 12; cf. Dioscor. 2, 138.
Charlton T. Lewis, Charles Short, A Latin Dictionary