Dictionary Definition:
Pīti (f.) [cp. Class. Sk. prīti & Vedic prīta pp. of prī, see pīneti & piya] emotion of joy, delight, zest, exuberance. On term see Dhs. trsl. 11 and Cpd. 243. Classed under sankhārakkhandha, not vedanā˚. -- D i.37, 75; iii.241, 265, 288; M i.37; S ii.30; iv.236; A iii.26, 285 sq.; iv.411, 450; v.1 sq., 135, 311 sq., 333 sq.; Sn 257, 687, 695, 969, 1143 (=Bhagavantaŋ ārabbha p. pāmujjaŋ modanā pamodanā citti -- odagyaŋ etc. Nd2 446); Nd1 3, 491; Pug 68; Dhs 9, 62, 86, 172, 584, 999; Nett 29; Vism 145 (& sukha in contrasted relation), 212, 287 (in detail); DA i.53 (characterised by ānanda); DhA i.32; Sdhp 247, 461. On relation to jhānasee the latter. In series pīti passaddhi samādhi upekkhā under sambojjhanga (with eleven means of cultivation: see Vism 132 & VbhA 282). -- Phrase pītiyā sarīraŋ pharati "to pervade or thrill the body with joy" (aor. phari), at J i.33; v.494; DhA ii.118; iv.102; all passages refer to pīti as the fivefold pīti, pañcavaṇṇā pīti, or joy of the 5 grades (see Dhs. trsl. 11, 12, and Cpd. 56), viz. khuddikā (slight sense of interest), khaṇikā (momentary joy), okkantikā (oscillating interest, flood of joy), ubbegā (ecstasy, thrilling emotion), and pharaṇā pīti (interest amounting to rapture, suffusing joy). Thus given at DhsA 115 & Vism 143, referred to at DhsA 166. -- pīti as nirāmisa (pure) and sāmisa (material) at M iii.85; S iv.235.
-- gamanīya pleasant or enjoyable to walk M i.117. -- pāmojja joy and gladness A iii.181. 307 (˚pāmujja); Dh 374; DhA iv.110; KhA 82. -- pharaṇatā state of being pervaded with joy, joyous rapture, ecstasy D iii.277; Ps i.48; Vbh 334; Nett 89. -- bhakkha feeding on joy (Ep. of the Ābhassara Devas) D i.17; iii.28, 84, 90; A v.60; Dh 200; A i.110; DhA iii.258; Sdhp 255. -- mana joyful -- hearted, exhilarated, glad of heart or mind M i.37; iii.86; S i.181; A iii.21; v.3; Sn 766; Nd13; J iii.411; Vbh 227. -- rasa taste or emotion of joy VvA 86. -- sambojjhanga the joy -- constituent of enlightenment M iii.86; D iii.106, 226, 252, 282. Eleven results of such a state are enumd at DhsA 75, viz. the 6 anussatis, upam' ânussati, lūkhapuggalaparivajjanatā, siniddha -- pug. -- sevanatā, pasādanīyasuttanta -- paccavekkhaṇatā, tadadhimuttatā (cp. Vism 132 & VbhA 282). -- sahagata followed or accompanied by joy, bringing joy Dhs 1578 (dhammā, various things or states); Vism 86 (samādhi). -- sukha zest and happiness, intrinsic joy (cp. Cpd. 56, 243) S i.203; D iii.131, 222; Dhs 160; Vism 158; ThA 160. According to DhsA 166 "rapture and bliss," cp. Expositor 222. -- somanassa joy and satisfaction J v.371; Sn 512; PvA 6, 27, 132.