ail
/eɪl/verb
with obj.
- archaic trouble or afflict (someone) in mind or body〈古〉（在精神或身体上）使苦恼, 使处境困难; 折磨：
exercise is good for whatever ails one.
锻炼对消除任何烦恼都有益。
词源
Old English eglian, eglan, from egle 'troublesome'， of Germanic origin ; related to Gothic agls 'disgraceful'.