permutatory
/pəˈmjuːtət(ə)ri/ /ˌpəːmjʊˈteɪt(ə)ri/rare
adjective
Of or involving permutation or exchange.
Origin
Mid 19th century; earliest use found in Charles Ambrose Lorenz (d. 1875). From post-classical Latin permutatorius from classical Latin permūtāt-, past participial stem of permūtāre + -ōrius -ory.