insomnia的词根是什么

词根是somn，词缀in+词根somn+词缀ia，中文意思是n.

失眠症;失眠(症);

例句

Though he's suffering the full effects of insomnia, his sleep difficulty is short-term, and should resolve quickly.

尽管他饱受失眠症困扰，但他的睡眠困难是短期的，很快就能解决。