Source : Webster's Revised Unabridged Dictionary (1913)

Justly \Just"ly\, adv. [From {Just}, a.]
   In a just manner; in conformity to law, justice, or
   propriety; by right; honestly; fairly; accurately. ``In equal
   balance justly weighed.'' --Shak.

         Nothing can justly be despised that can not justly be
         blamed: where there is no choice there can be no blame.
                                                  --South.

Source : WordNet®

justly
     adv 1: with honesty; "he was rightly considered the greatest singer
            of his time" [syn: {rightly}, {justifiedly}] [ant: {unjustly}]
     2: in accordance with moral or social standards; "that serves
        him right"; "do right by him" [syn: {right}]