the.com/shower bench

means A small seat installed inside a shower stall, meant for sitting while washing, shaving legs, or just resting without the structural commitment of standing.

from Not an ancient word at all — a plain modern compound of 'shower' (from Old English 'scur,' a brief fall of rain) and 'bench' (from Old English 'benc,' a long seat). The shower itself is the newer idea historically, catching on widely only once indoor plumbing made rinsing under a spray of water practical; the bench followed as bathrooms shifted toward accessibility and spa-like comfort, so the phrase is really just function stacked on function, no myth required.