Dictionary Definition:
Rāga [cp. Sk. rāga, fr. raj: see rajati] 1. colour, hue; colouring, dye Vin ii.107 (anga˚ "rougeing" the body: bhikkhū angarāgaŋ karonti); ThA 78; SnA 315 (nānāvidha˚). -- 2 (as t. t. in philosophy & ethics) excitement, passion; seldom by itself, mostly in combn with dosa, & moha, as the three fundamental blemishes of character: passion or lust (uncontrolled excitement), ill -- will (anger) and infatuation (bewilderment): see dosa2 & moha; cp. sarāga. -- These three again appear in manifold combns with similar terms, all giving var. shades of the "craving for existence" or "lust of life" (taṇhā etc.), or all that which is an obstacle to nibbāna. Therefore the giving up of rāga is one of the steps towards attaining the desired goal of emancipation (vimutti). -- Some of the combns are e. g. the 3 (r. d. m.)+kilesa; +kodha; very often fourfold r. d. m. with māna, these again with diṭṭhi: see in full Nd2 s. v. rāga (p. 237), cp. below ussada. -- Of the many passages illustrating the contrast rāga>nibbāna the foll. may be mentioned: chandarāga vinodanaŋ nibbānapadaŋ accutaŋ Sn 1086; yo rāgakkhayo (etc.): idaŋ vuccati amataŋ S v.8; yo rāgakkhayo (etc.): idaŋ vuccati nibbānaŋ S iv.251; ye 'dha pajahanti kāmarāgaŋ bhavararāganu -- sayañ ca pahāya . . . parinibbāna -- gatā Vv 5324; kusalo jahati pāpakaŋ . . . rāga dosa -- mohakkhayā parinibbuto Ud 85. -- Personified, Rāga (v. l. Ragā), Taṇhā & Arati are called the "daughters of Māra" (Māradhītā): Sn 835; DhA iii.199; Nd1 181. -- For further detail of meaning & application see e. g. -- (1) withdosa & moha: D i.79, 156; iii.107, 108, 132; S i.184; iv.139, 195, 250, 305; v.84, 357 sq.; M ii.138 (rasa˚ the excitement of taste); A i.52, 156 sq., 230 sq.;ii.256; iii.169, 451 sq.; iv.144; It 56, 57; Vism 421; VbhA 268, 269 (sa˚ & vīta˚). -- (2) in other connection: D iii.70, 74, 146, 175, 217, 234 (arūpa˚), 249 (cittaŋ pariyādāya tiṭṭhati); S ii.231=271 (cittaŋ anuddhaŋseti); iii.10; iv.72, 329; v.74 (na rāgaŋ jāneti etc.); A ii.149 (tibba -- rāga -- jātiko rāgajaŋ dukkhaŋ paṭisaŋvedeti); iii.233, 371 (kāmesu vīta˚); iv.423 (dhamma˚); Sn 2, 74, 139, 270=S i.207 (+dosa); Sn 361, 493, 764, 974, 1046; Dh 349 (tibba˚= bahala -- rāga DhA iv.68); Ps i.80 sq.; ii.37 (rūpa˚), 95 (id.); Vbh 145 sq. (=taṇhā), 368 (=kiñcana), 390; Tikp 155, 167; DA i.116. -- Opp. virāga.
-- aggi the fire of passion D iii.217; S iv.19; It 92 (r. dahati macce ratte kāmesu mucchite; +dosaggi & mohaggi); J i.61 (˚imhi nibbute nibbutaŋ nāma hoti). -- ânusaya latent bias of passion (for=dat.) S iv.205 (the 3 anusayas: rāga˚, paṭigha˚, avijjā˚); It 80 (yo subhāya dhātuyā rāgo so padūyati). -- ussada conceit of lust, one of the 7 ussadas (r. d. m., māna, diṭṭhi, kilesa, kamma) Nd1 72. -- kkhaya the decay (waning) of p. S iii.51, 160: iv.142, 250, 261; v.8, 16, 25; VbhA 51 sq. -- carita one whose habit is passion, of passionate behaviour Miln 92; Vism 105 sq. (in det.), 114 (+dosa˚, moha˚), 193; KhA 54 (colour of the blood of his heart, cp. Vism 409) -- ṭṭhānīya founded on passion A i.264; AA 32. -- patha way of lust, lustfulness, passion, sensuality S iv.70; Sn 370, 476 (with expln "rāgo pi hi duggatīnaŋ pathattā rāgapatho ti vuccati" SnA 410). -- rati passionate or lustful delight DhA iii.112; -- rattaaffected with passion S i.136; Sn 795 (as ˚rāgin, cp. Nd1 100=kāma -- guṇesu ratta).