dahara : [adj.] young in years. (m.) a boy.

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

Dahara (adj.) [Sk. dahara & dahra for dabhra to dabhnoti to be or make short or deficient, to deceive] small, little, delicate, young; a young boy, youth, lad Di.80, 115; S i.131; ii.279 (daharo ce pi paññavā); M i.82; ii.19, 66; A v.300; Sn 216, 420 (yuvā+), 578 (d. ca mahantā ye bālā ye ca paṇḍitā sabbe maccuvasaŋ yanti); J i.88 (daharadahare dārake ca dārikāyo), 291 (˚itthī a young wife); ii.160, 353; iii.393; Dh 382; Pv iv.150 (yuvā); DhA i.397 (sāmaṇera); DA i.197 (bhikkhū), 223 (=taruṇa), 284 (id.); PvA 148; VvA 76; ThA 239, 251. Opposed to mahallaka J iv.482; to vuḍḍha Vism 100. <-> f. daharā Vv 315 (young wife) (+yuvā VvA 129) & daharī J iv.35; v.521; Miln 48 (dārikā).

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

dahara: a. 年輕

巴漢辭典 編者：(斗六) 廖文燦

dahara mfn. (fr. dobhrá) small, fine, thin ChUp. viii, 1, l KātyŚr. xiv KenUp. (vḷ. dabhra) BhP. x
• young in age Lalit. vii, 72 SaddhP.
• m. a younger brother L.
• a child W.
• a young animal W.
• a mouse Gaut. Yājñ. iii, 279/271
 

Sanskrit-English Dictionary, by M. Monier William