jack
laborer
labourer
manual laborer
attitude-control
carburetor
cubbyhole
flamethrower
injector
thingummy
Breyer
Dreyer
Mayer
Sayer
Speyer
assayer
bayer
brayer
conveyer
conveyor
doomsayer
dreyer
gayer
grayer
layer
mayor
multilayer
naysayer
payer
player
prayer
preyer
purveyor
sauter
sayer
slayer
soothsayer
stayer
strayer
surveyor