from The Century Dictionary.
- Going backward and forward; alternating in direction or in action; reciprocating: opposed to rotatory.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective moving alternately backward and forward
- adjective given or done or owed to each other
Sorry, no etymologies found.
The reciprocatory payment being successfully carried through, it now remains for the bridegroom's relatives to give the farewell feast and carry off the bride.
By a slight modification small vanes might be turned outward from the surface of the metal, which would produce mixing currents if the agitator were given a slight reciprocatory revolving motion, thus avoiding the alternate withdrawal and re-immersion of any part of the stem so strongly deprecated by Berthelot; but for several reasons I think an up and down motion of the agitator desirable in this instrument.
Mañgguáñgan, sent me a few days later a present of a chicken and about two glassfuls of sugarcane brew, and would not accept a reciprocatory gift of beads and jingle bells that I sent him.
The following day, or whenever the payment has been completed, begins the reciprocatory payment  in which the bride's relatives return to those of the bridegroom a certain amount of goods varying in value, but approximately one-half of what has been paid as the marriage portion.
The motion is similar, not being continuously revolving, but reciprocatory, and the method is customary in all the rice-eating regions except India, and is well known in parts of the latter, though not universal.
The conscience-stricken pillar of beautiful muscle -- who could have easily killed both his assailants at one blow -- not only offered no reciprocatory violence but refused even to defend himself.
Customs Tariff to give free trade within the Empire, and complete protection so far as the rest of the world was concerned, with strictly reciprocatory concessions to such nations as might choose to offer these to us, and to no others.
"It would be no good if ye did," responded Mr. Wendover, with a reciprocatory grin which displayed two yellow fangs like the teeth of a walrus.
The change effected in the art of newspaper-printing, by the process of stereotypes, is scarcely inferior to that by which the late Mr. Walter applied steam-power to the printing press, and certainly equal to that by which the rotary press superseded the reciprocatory action of the flat machine.
In the evening the Ancient and Honorable Artillery attended a special reception at the White House, reciprocatory of courtesies extended by the corps to President Arthur, one of its honorary members.