re·cip·ro·cate (rĭ-sĭp'rə-kāt') v.
re·cip·ro·cat·ed, re·cip·ro·cat·ing, re·cip·ro·cates
v.
tr.
To give or take mutually; interchange.
To show, feel, or give in response or return.
v.
intr.
To move back and forth alternately.
To give and take something mutually.
To make a return for something given or done.
To be complementary or equivalent.
[Latin reciprocāre, reciprocāt-, to move back and forth, from reciprocus, alternating; see reciprocal.] re·cip'ro·ca'tive adj., re·cip'ro·ca'tor n.
Synonyms: These verbs mean to give, take, or feel reciprocally: doesn't reciprocate favors; consideration requited with disregard; return a compliment.
[ri-sip-ruh-keyt] 
verb, -cat⋅ed, -cat⋅ing.