Definition of woader in US English:

woader

(also wadder)

noun

rare, historical
  • (A) A cultivator of woad. (b) A person engaged in dyeing with woad.

Origin

Middle English; earliest use found in Close Rolls Henry III. From woad + -er; in later use probably also partly from woad + -er.

Pronunciation

woader

/ˈwəʊdə/