upa-stáraṇa n. the act of spreading over, a cover, [RV. ix, 69, 5]; [AV. v, 19, 12]
the act of spreading out under, anything laid under, an under-mattress, pillow, [ĀśvGṛ.]; [Āp.]; [BhP.] &c.
the act of pouring under, [ŚāṅkhGṛ. i, 13, 16]
pouring out so as to form a substratum, a substratum (said of the water which is sipped before taking food; cf. amṛtopa°), [ĀśvGṛ. i, 24, 12]; [HirGṛ.] &c.
scattering grass (round the Āhavanīya and Gārhapatya fire, accompanied with the Mantra ubhāv agnī upa-stṛṇate) Comm. on [TS. i, 6, 7, 2], &c.