kacchā

neuter

1. marshy land, marshes; long grass, rush, reed SN.i.52 (te hi sotthiṃ gamissanti kacche vāmakase magā), SN.i.78 (parūḷha k-nakha-lomā with nails and hair like long-grown grass cp. same at Ja.iii.315 & Sdhp.104); Ja.v.23 (carāmi kacchāni vanāni ca); Ja.vi.100 (parūḷha-kacchā tagarā) Snp.20 (kacche rūḷhatiṇe caranti gāvo); Snp-a.33 (pabbata opp. to nadī˚, mountain, & river marshes). Kern (Toevoegselen ii.139) doubts the genuineness of the phrase parūḷha˚.
2. an arrow (made of reed) MN.i.429 (kaṇḍo… yen’ amhi viddho yadi vā kacchaṃ yadi vā ropiman ti).

cp. Sk. kaccha, prob. dial.

feminine

1. enclosure denoting both the enclosing and the enclosed i.e. wall or room: see kacchantara.
2. an ornament for head & neck (of an elephant), veilings, ribbon Vv.21#9 = Vv.69#9 (= gīveyyaka Vv-a); Ja.iv.395 (kacchaṃ nāgānaṃ bandhatha gīveyyaṃ paṭimuñcatha).
3. belt loin-or waist-cloth (cp. next) Vin.ii.319; Ja.v.306 (= saṃvelli); Mil.36; Dhp-a.i.389.

derivation unknown, cp. Sk. kakṣā, Lat. cohus, incohare & see details under gaha¹