The term MARK PERMANENTLY can be broken down into two crossword solutions: SCAR and ETCH. SCAR is a verb meaning to mark the skin with a permanent line or indentation, usually caused by injury or surgery. ETCH is also a verb meaning to carve or engrave a design, pattern, or words onto a hard surface, such as metal or stone. Together, these two terms describe the action of making a permanent mark on a surface.