"reciprocally" in the adverb sense
1. in return, reciprocally
often followed by `for') in exchange or in reciprocation
"gave up our seats on the plane and in return received several hundred dollars and seats on the next plane out"
"we get many benefits in return for our taxes"
2. mutually, reciprocally
in a mutual or shared manner
"the agreement was mutually satisfactory"
"the goals of the negotiators were not reciprocally exclusive"
3. inversely, reciprocally
in an inverse or contrary manner
"wavelength and frequency are, of course, related reciprocally"- F.A.Geldard
Source: WordNet® (An amazing lexical database of English)
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