permutatio
permutatio 〈拉〉(罗马法)交易;交换;物物交换
permutatio (p[schwa]r-myoo-tay-shee-oh), n. [Latin “exchange”] Roman law. An agreement for barter or exchange. • The agreement became binding as soon as one party had transferred ownership of his thing to the other. Pl. permutationes (p[schwa]r-myoo-tay-shee-oh-neez).