ingrain

Etymology

Inherited from Middle English engreynen, from the French phrase en grain; reinforced by the phrase (dyed) in grain. See grain.

verb

1. (transitive) To dye with a fast or lasting colour.
2. (transitive, figurative) To make (something) deeply part of something else.
   The dirt was deeply ingrained in the carpet.
   The lessons I learned at school were firmly ingrained in my mind.

adj

1. Dyed with grain, or kermes.
2. Dyed before manufacture; said of the material of a textile fabric.
3. (figurative, by extension) Thoroughly inwrought; forming an essential part of the substance.

noun

1. An ingrain fabric, such as a carpet.