<span class="searchmatch">immūtātor</span> second/third-person singular future passive imperative of immūtō “<span class="searchmatch">immutator</span>”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary...
in -ier is a rare poetic form which is attested. immūtābilis immūtātiō <span class="searchmatch">immūtātor</span> immūtātus commūtō dēmūtō ēmūtō mūtō permūtō submūtō trānsmūtō Catalan:...