adjective strong, firm, severe harsh, cruel, pitiless SN.i.101; SN.ii.226; Snp.244; Dhp.139; Ja.iii.34; Pv.iv.3#6 (= ghora Pv-a.251); Mil.117 (vāta) Pv-a.24, Pv-a.52 (= ghora), Pv-a.159 (sapatha a terrible oath ghora), Pv-a.181 (= kurūrin), Pv-a.221 (˚kāraṇa); Sdhp.5, Sdhp.78, Sdhp.286.

Ved. dāruṇa, to dāru (“strong as a tree”), cp. Gr. δροόν = ἰσξυρόν Hesych; Lat. dūrus; Oir. dron (firm), Mir. dūr (hard) Ags. trum