quit

verbs

put an end to a state or an activity
"Quit teasing your little brother"
cease, discontinue, give up, lay off, quit, stop
give up or retire from a position
"The Secretary of the Navy will leave office next month"; "The chairman resigned over the financial scandal"
leave office, quit, resign, step down
go away or leave
depart, quit, take leave
turn away from; give up
"I am foreswearing women forever"
foreswear, quit, relinquish, renounce
give up in the face of defeat of lacking hope; admit defeat
"In the second round, the challenger gave up"
chuck up the sponge, drop by the wayside, drop out, fall by the wayside, give up, quit, throw in, throw in the towel
is derived from
quitter