reciprocally

In a reciprocal manner; with reciprocating action or effect; alternatingly; interchangeably; correspondingly.

In a reciprocal ratio or proportion; inversely.

In a reciprocal manner; so that each affects the other, and is equally affected by it; interchangeably; mutually.

In the manner of reciprocals.

proportional, as two variable quantities, so that the one shall have a constant ratio to the reciprocal of the other.

In a reciprocal manner; by way of returning (e.g. a favour, insult, etc).

in a mutual or shared manner

(often followed by `for’) in exchange or in reciprocation

in an inverse or contrary manner