The Collaborative International Dictionary
Overdye \O`ver*dye"\, v. t.
To dye with excess of color; to put one color over (another).
vb. (context transitive English) To dye (something already coloured) with another colour.
Usage examples of "overdye".
Blue used woad or indigo alone, and dark green was produced by overdyeing blue fabric with weld, dyer's greenweed or a similar yellow dye.