Early 17th century; earliest use found in Joshua Sylvester (d. 1618), poet and translator. From oyster + -er. In later use probably partly from oyster + -er.
Definition of oysterer in US English:
oysterer
nounˈɔɪst(ə)rə
A person who gathers, sells, or prepares oysters.
Origin
Early 17th century; earliest use found in Joshua Sylvester (d. 1618), poet and translator. From oyster + -er. In later use probably partly from oyster + -er.