Home › Words › M › mutuationmutuationmutuation means an act of borrowing or exchanging.EtymologyFrom Latin mutuatio, from mutuare, mutuari (“to borrow”), from mutuus. See mutual.nounAn act of borrowing or exchanging.e.g.“A sheep may teach thee to foot a precipice, a goat to leap a chasm; for there is a mutuation between the great and the little, that the young do not see, and the proud will not own.” — 1848, Thomas Hall, Rowland Bradshaw:Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.mutation 72% match — Any alteration or change. vs mutuation →intermutation 67% match — interchange; mutual or reciprocal change vs mutuation →mutate 65% match — To undergo mutation. vs mutuation →transmutation 65% match — Change, alteration. vs mutuation →mutuatitious 64% match — Borrowed, taken from another person or thing. vs mutuation →mutative 64% match — Relating to mutation. vs mutuation →mutating 63% match — Causing or tending to cause mutation. vs mutuation →immutation 61% match — change (alteration, mutation, modification) vs mutuation →