Source : Webster's Revised Unabridged Dictionary (1913)

Priestly \Priest"ly\, a.
   Of or pertaining to a priest or the priesthood; sacerdotal;
   befitting or becoming a priest; as, the priestly office; a
   priestly farewell. --Shak.

Source : WordNet®

priestly
     adj 1: associated with the priesthood or priests; "priestly (or
            sacerdotal) vestments"; "hieratic gestures" [syn: {hieratic},
             {hieratical}, {sacerdotal}]
     2: befitting or characteristic of a priest or the priesthood;
        "priestly dedication to the people of his parish" [syn: {priestlike}]
        [ant: {unpriestly}]
     [also: {priestliest}, {priestlier}]