phrasal
1. obsolete : to pledge in drinking
2.
a. : to do what is just : administer justice : act justly
longed to do justice in the world — Time
b. : to treat fairly or according to merit
to do the man justice, his writing is brilliant
c.
(1) : to treat or handle adequately or properly
not doing full justice to his material — Carl Van Doren
a full schedule may not permit him to do justice to his studies — Bates Boyle
open for experienced salesmen who can do justice to America's outstanding line of small leather goods — Luggage & Leather Goods
(2) : to consume in a manner showing due appreciation
do the food justice
after he likewise had done the liquor justice — Winston Churchill
3. : to acquit in a way that is worthy of one's powers
in the concerto he clearly did not do himself justice