Apa · masculine, neuter and feminine plural
Āpa and āpo (neuter) [Vedic ap and āp, feminine singular apā, plural āpaḥ, later Sanskrit also āpaḥ neuter — Indo-Germanic °ap and °ab, primarily to Lithuanian ùpé water, Old Prussian ape river, Greek Απία name of the Peloponnesus; further (as °ab) to Latin amnis river, Sanskrit abda cloud, and perhaps ambu water] — water; philosophically technical term for cohesion, representative of one of the 4 great elements (cf. mahābhūta), viz. paṭhavī, āpo, tejo, vāyo: see Cpd. 268 and BMPE 184 note 3, also below °dhātu. D II 259; M I 327; S II 103; III 54, 207; A IV 312, 375; Snp 307, 391 (°ṃ), 392 (locative āpe), 437 (the same); Ja IV 8 (paṭhavi-āpa-teja-); Dhs 652; Miln 363 (genitive āpassive, with paṭhavī etc.); Saddh 100. -kasiṇa the water-device, i.e. meditation by (the element of) water (cf. Manual of a Mystic 75 note) D III 268; Ja I 313; Dhs 203; Vism 170; Dhp-a I 312; III 214; -dhātu the fluid element, the essential element in water, i.e. element of cohesion (see Cpd. 155 note 2; Manual of a Mystic 9, note 2; BMPE 184, note 3, 222) D III 228, 247; M I 187, 422: Dhs 652; Nett 74. (See also dhātu); -rasa the taste of water A I 32; Pj II 6; -sama resembling water M I 423.
āpa (= Pali id. , thematization of Skt. āp, ap), water ; clear cases noted only in cpd. āpa-skandha mass of water , SP 126.7 ( vs ) sa caiva sama muñceta āpaskandham analpakam; with adhaḥ or heṣṭā, heṣṭi, of subterranean mass of water, LV 64.12 adha-āpaskandham; 298.20 ( vs ) [Page097-b] heṣṭāpaskandha ( acc. sg. ; so divide) caraṇaiḥ pratigrāhyamāṇāḥ, being caused to receive with their feet the mass of water underneath (the earth); 368.19 ( vs ) heṣṭi śatasahasraṃ yāvataś cāpaskandho (contrasted with dharaṇitalu, next line). In Mv ii.92.5 ( vs ) āpaṃ, acc. sg. , could be referred to this stem, or regarded as belonging to the Skt. stem āp, ap, transferred to the sing. ( cf. Wackernagel-Debrunner 3.240 f. ).
water, the element water
【陽，中】 水，液體 (【合】 中變成 āpo) 。
(nt, nt, in comps) water; liquid water, liquid Construction: √āp + a