mutuation
An act of borrowing or exchanging.
countable, obsolete, uncountable
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.
Where it comes from
From Latin mutuatio, from mutuare, mutuari (“to borrow”), from mutuus. See mutual.
Adapted from the Wiktionary entry mutuation (CC BY-SA 4.0).