1812, frequentative of bob (v.1). The notion is "to move or handle something with continual bobbing." Related: Bobbled; bobbling. Bobble-head as a type of doll with a spring-mounted head is from 1968.
the second baseman made a bobble but still had time to throw the runner out
Bob
bob
Bobadil
bobbin
bobbinet
bobble
bobby
bobby pin
bobby sox
bobcat
bobolink