'khor gsum yongs su

1) use/ employ [as]; 2) impose servitude; 3) boil/ ferment; 4) be tamed; 5) save/ spare [IW]

i]. bkol ba, bkol ba, khol, - to use, utilize. II]. khol ba, 'khol ba 1) to boil, be boiling. 2) to be tamed. 3) to bind as a servant, treat as a servant. 4) to save, to spare. 5) to ferment; to boil, to be boiling; alt. khol ba, 'khol ba intr. v.; 'khol ba, bkol ba, bkol ba, khol trans. v [RY]

make a person a slave, bind as a servant, cause to serve one, save, spare, enjoy with moderation, become insensible, be asleep, boil, bind to service, employ, SA skol ba [JV]

to get boiled [RY]