Answer: engrain

AnswerCrossword Clue
ENGRAINFix indelibly
ENGRAINInnate quality: Var.
ENGRAINImbue with a wood finish
engrainingrained; firmly fixed
engrainto implant or fix deeply and firmly, as in the nature or mind
engrain(of fiber or yarn) dyed in a raw state, before being woven or knitted
engrainmade of fiber or yarn so dyed
engrainto fix deeply