attribution (n.) Look up attribution at Dictionary.com
late 15c., "action of bestowing or assigning," from Latin attributionem (nominative attributio) "an assignment, attribution," noun of action from past participle stem of attribuere "assign, allot; ascribe, impute," from assimilated form of ad "to" (see ad-) + tribuere "assign, give, bestow" (see tribute). Meaning "thing attributed" is recorded from 1580s.