Dictionary Definition:
Ruppati [rup=lup, one of the rare cases of P. r. representing a Sk. 1., whereas the opposite is frequent. The same sound change Idg., as Lat. rumpo to break corresponds to Sk. lumpati. Besides we find the Sk. form ropayati to break off. -- The root has nothing to do with rūpa, although the P. Commentators combine these two. -- Cp. also Sk. ropa hole; Ags. rēofan to break, rēaf (theft)= Ger. raub, rauben, and many other cognates (see Walde s. v. rumpo). -- The root rup is defd at Dhtm by nās, i. e. to destroy; another rup is given at Dhtm 837 in meaning "ropana"] to be vexed, oppressed, hurt, molested (always with ref. to an illness or pain) Sn 767 (salla -- viddho va r.) 1121; Nd1 5 (=kuppati, ghaṭṭiyati, pīḷiyati); Nd2 543 (=kuppati pīḷayati ghaṭayati). -- ppr. gen. ruppatoS i.198 (salla -- viddhassa r.; expld at K.S. 320 by "ghaṭṭan -- atthena")= Sn 331 (reads salla -- viddhāna ruppataŋ, i. e. pl. instead of sg.); Th 1, 967 (salla -- viddhassa ruppato (C. sarīravikāraŋ āpajjato, Brethren, 338); J ii.437 (C. ghaṭṭiyamāna pīḷiyamāna)=Vism 49 (dukkhitassa r.); J iii.169 (salla -- viddhassa r.=ghaṭṭiyamāna C.). -- ruppati to Pāli exegesis with its fondness of allegorical ("orthodox") interpretation, is the etym. base of rūpa, thus at S iii.86: "ruppatī ti tasmā rūpan ti vuccati kena r.? sītena, uṇhena etc. (all kinds of material dukkha: dukkha ii.3b) ruppati." -- Or at Sn 1121 (ruppanti rūpena), & at other passages given under rūpa (A). See also ruppana.