2008, Ammon Shea, Reading the OED: One Man, One Year, 21,730 Pages (Perigee Books):
Redamancy (n.) The act of loving in return. Redamancy is distinguished from most of the other words about love in that it is one of the few that specifies reciprocity.
2011, David P. Grzan,Don Quixote's Impossible Dream: To Every Man His Dulcinea, to Every Woman Her Don Quixote, page 51:
Withal, my capital love is replenished by the inexhaustible Quarry of her love, enriching my love's quarry for her, And so on interchanging our redamancies[…]