Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class VI. Words Relating to the Sentient and Moral Powers
Section IV. Moral Affections
1. Moral Obligations

927a. Exemption.

   NOUN:EXEMPTION, freedom, irresponsibility, immunity, liberty, license, release, quitclaim [law]; exoneration, excuse, dispensation, absolution, franchise [obs.], renunciation, discharge; exculpation [See Acquittal].
   VERB:EXEMPT, release, acquit, discharge, quitclaim [law], remise, remit; free, set at liberty, let off [colloq.], pass over, spare, excuse, dispense with, give dispensation, license; stretch a point; absolve (forgive) [See Forgiveness]; exonerate (exculpate) [See Acquittal]; save the necessity.
  be exempt &c. adj.
   ADJECTIVE:EXEMPT, free, immune, at liberty, scot-free; released &c. v.; unbound, unencumbered; irresponsible, not responsible, unaccountable, not answerable; excusable.
  1. Bonis nocet quisquis pepercerit malis.—Syrus
  2. The charter of thy worth gives thee releasing.—Shakespeare