plumber

The story

1. Latin · derived fromplumbārius
2. Old French · derived fromplummier
3. Middle English · inherited fromplumber
4. English todayplumber

From Middle English plumber, from Old French plummier (French plombier); from Latin plumbārius, from plumbum (“lead or lead shot”). The verb sense “to botch” is perhaps from the negative stereotype of the occupation.