To repeatedly or continually emphasise (an opinion or idea) until or so that a person or group of people understands it.
To make (something) deeply part of something else.
To dye with a fast or lasting colour.
Dyed with grain, or kermes.
Dyed before manufacture; said of the material of a textile fabric; hence, in general, thoroughly inwrought; forming an essential part of the substance.
An ingrain fabric, such as a carpet.