permūtātĭo, ōnis, f. [permuto].
I A changing , altering , change , alteration : magna rerum, Cic. Sest. 34, 73: temporum, id. Par. 6, 3, 51; Amm. 15, 3, 7: defensionis, Quint. 5, 13, 41: vicissitudinum, Vulg. Sap. 7, 18.—
II An interchanging , barter , exchanging , exchange : mercium, Tac. G. 5, 4: partim emptiones, partim permutationes, Cic. Pis. 21, 48: haec res permutationem non recipit, Dig. 30, 1, 51: rerum, ib. 19, 5, 5: captivorum, Eutr. 2, 25; Gai. Inst, 3, 141. —Of exchanging money, negotiating a bill of exchange, Cic. Fam. 3, 5, 4; id. Att. 5, 13, 2.—
B A substitution.
1 In rhet., of one expression for another , permutation , Auct. Her. 4, 34, 46.—
2 Of one person for another : similis si permutatio detur, Juv. 6, 653.