1. “setting down,” receptacle; (hidden) treasure Snp.285 (brahma n.); Dhp.76; Kp.viii.2 (see Kp-a 217 sq.: nidhīyatī ti nidhi, def. of n.), 9 (acorâharaṇo nidhi cp. “treasures in heaven, where thieves do not steal” Matt. 6, 20) Sdhp.528, Sdhp.588.
2. “putting on,” a cloak Ja.vi.79 (explained as vākacīra-nivāsanaṃ = a bark dress). Cp sannidhi.

• -kumbhī a treasure-pot, a treasure hidden in a pot = a hidden treasure Dhp-a.ii.107; Dhp-a.iv.208;
• -nidhāna laying up treasures, burying a treasure Ja.iv.280
• -mukha an excellent treasure AN.v.346.

Vedic nidhi, ni + dhā, see nidahati