PERMUTA'TION, noun [Latin permutatio, permuto; per and muto, to change.] 1. In commerce, exchange of one thing for another; barter. 2. In the canon law, the exchange of one benefice for another. 3. In algebra, change or different combination of any number of quantities.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI