Lewis Short
transmūtātĭo (noun F) : transmuto.
* In gen., a changing, Vulg. Jacob. 1, 17.
* In partic., a shifting, transposition of letters (post-Aug.; cf.: transpositio, commutatio),Quint. 1, 5, 39; 9, 4, 89.
Charlton T. Lewis, Charles Short, A Latin Dictionary