flusher

The story

1. Middle English · inherited fromflusshere
2. English todayflusher

From Middle English flusshere. By surface analysis, flush + -er. First attested in the late 13th c.

First known use, by meaning

• 1849 Synonym of flusherman.
• 1879 The mechanical part of a flush toilet (e.g., a pullchain or lever) that causes the bowl's contents to be conveyed down the drain.