12 letters · 21 points in Scrabble
adverb (often followed by `for') in exchange or in reciprocation
adverb in a mutual or shared manner
adverb in an inverse or contrary manner; ; - F.A.Geldard
originEtymology tree Latin reciprocusder. English reciprocal Middle English -ly English -ly English reciprocally From reciprocal + -ly.
Etymology from Wiktionary, CC BY-SA 3.0