∙ Being an element; present in the essence of a thing
∙ Fixed, established
Verb
∙ simple past tense and past participle of ingrain
ingrain
Verb
∙ To make something deeply part of something else, either literally or figuratively.
Adjective
∙ 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.