ingrain

verb

1. (transitive)To dye with a fast or lasting colour.
2. (figuratively, transitive)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. (not-comparable)Dyed with grain, or kermes.
2. (not-comparable)Dyed before manufacture; said of the material of a textile fabric.
3. (broadly, figuratively, not-comparable)Thoroughly inwrought; forming an essential part of the substance.

   “When were such changes ever made in men's natural relations to one another: when was such reconcilement of ingrain differences ever effected!”

noun

1. An ingrain fabric, such as a carpet.