grace n1: a special favor: privilegeconsidered by many authorities to be a matter of grace and not of right — The Mentally Disabled and the Law2 a: a temporary exemptionb: the prerogative of mercy exercised (as by a chief executive) or granted in the form of equitable relief
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.
absolution, clemency, concession, excuse, favor, forbearance, forgiveness, indulgence, pardon, reprieve
absolution, amenity, amnesty, charity, clemency, condonation, consent, decorum, dispensation (exception), embellish, facility (easiness), favor (act of kindness), franchise (license), leave (permission), lenience, permission, proportion, propriety (correctness), remission, respite (reprieve)
Burton's Legal Thesaurus. William C. Burton. 2006