1747, a mining word, from Low German stope "a step," apparently cognate with step (n.). As a verb from 1778, "remove the contents of a vein," literally "to cut in stopes." Related: Stoped; stoping.
stool pigeon
stool-ball
stoop
stop
stop-and-go
stope
stopgap
stop-over
stoppable
stoppage
stopper