reparation (n.)

late 14c., reparacioun, "repair, act of mending" (a sense now rare or obsolete), also "amends, compensation, recompense, satisfaction for injury, what is done to repair a wrong," from Old French reparacion and directly from Late Latin reparationem (nominative reparatio) "act of repairing, restoration," noun of action from past-participle stem of Latin reparare "restore, repair" (see repair (v.1)).

Reparations "compensation for war damaged owed by the aggressor" is attested from 1921, with reference to Germany, from French réparations (1919).