godan verb (-su), transitive verb
wear away; rub down; abrade
Transitive verb meaning to wear something down through friction or rubbing. Often used for physical objects like shoes, tires, or tools, but can also be used figuratively for nerves or patience.
靴の底をすり減らしてしまった。
I wore down the soles of my shoes.
長い会議で神経をすり減
The long meeting frayed my nerves.