An appearance of amicability was assumed, and to the old argument they went, baiting the poor author like a bear tied to a stake.
Promptly, inexplicably, with amicability, gratefully it was declined.
1650s, see amicable + -ity.
early 15c., from Late Latin amicabilis "friendly," a word in Roman law, from Latin amicus "friend," related to amare "to love" (see Amy). Cf. also amiable.