mid-15c., "retailer in grain" (as a surname from mid-13c., probably "maker of bags"), also, 1740, "miser;" agent noun from bag (v.). Of persons who bag various things for a living, from 19c.; meaning "machine that puts things in bags" is from 1896.
bagatelle
bagel
bag-end
bagful
baggage
bagger
baggy
Baghdad
bagpipes
baguette
bah