medicaster

• 江湖医生
• 庸医

来自拉丁语medicus,医生，大夫，词源同medicine,-aster,贬义后缀。即差劲的医生，比喻用法。

medicaster (n.)

"quack," c. 1600, from Latin *medicaster (source also of Italian medicastro, French médicastre, 16c.), from medicus (see medical (adj.)). The feminine form is medicastra. Compare also -aster.