ˈstānə(r) noun
( -s )
Etymology: alteration (influenced by -er ) of Middle English steynour, from steynen to stain + -our -or — more at stain
: one that stains: as
a. : a worker who applies a coloring or finishing stain (as to wood, furniture, or leather goods)
b. : a worker who prepares the dyes for paper-coating mixtures
c. : a pigment used merely to give color to a paint, as distinguished from the base
d. : any of several insects that stain the material on which they feed — see cotton stainer