damma : [adj.] tamed or trained.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Damma (adj.) [Sk. damya, grd. of dāmyati see dameti & cp. damaya (damiya)] to be tamed or restrained; esp. with ref. to a young bullock M i.225 (balagāvā dammagāvā the bulls & the young steers); It 80; also of other animals: assadamma -- sārathi a horse -- trainer A ii.112; & fig. of unconverted men likened to refractory bullocks in phrase purisa -- damma -- sārathi (Ep. of the Buddha) "the trainer of the human steer" D i.62 (misprint ˚dhamma˚)=ii.93=iii.5; M ii.38; A ii.112; Vv 1713 (nara -- vara -- d. -- sārathi cp. VvA 86.

Pali-English Dictionary, TW Rhys Davids, William Stede,

damma: a. 調(ㄊㄧ

巴漢辭典 編者：(斗六) 廖文燦