قيض

قَيْضٌ ذ [ An egg-shell; ] the upper hard covering that is upon an egg: (K:) or [ an egg-shell cracked in pieces; ] what is cracked in pieces of the upper covering of an egg: (S, * IB:) or one from which the young bird, or the fluid, has gone forth. (Lth, K.) -A2- A compensation, or substitute; a thing given, or received, or put, or done, instead of, in the place of, or in exchange for, another thing. (K.) You say, بَاعَهُ فَرَسً بِفَرَسَيْن قَيْضَيْنِ [ He sold to him a horse for two horses as substitutes ]. (TA.) ― -b2- هُمَا قَيْضَانِ They two are likes; they two are like each other; (A' Obeyd, A;) each of them is fit to be a substitute for the other. (A, TA.) [See also هُمَا قَوْضَانِ.] ― -b3- هٰذَا قَيْضٌ لَهُ, and له ↓ قِيَاضٌ, This is equal, or equivalent, to it. (O, K.)