notcher

noun

1. a concave or -shaped cut or indentation in an edge or across a surface
2. ☆ a narrow pass with steep sides; defile; gap
3. Informal a step; grade; degree; peg: a notch below average

Origin: prob. < ME (a)n oche < OFr oche, osche, a notch < oschier, to notch

transitive verb

1. to cut a notch or notches in; indent with notches
2. to record or tally, as by means of notches