ailing

/หˆeษช.lษชล‹/
verb
  1. 1

    To cause to suffer; to trouble, afflict. (Now chiefly in interrogative or indefinite constructions.)

    โ€œHave some chicken soup. It's good for what ails you.โ€

  2. 2

    To be ill; to suffer; to be troubled.

noun
  1. 1

    An ailment.

adjective
  1. 1

    Sickly; sick; ill; unwell.

    โ€œShe cared for her ailing brother day in, day out.โ€

Source: https://en.wiktionary.org/wiki/ail, https://en.wiktionary.org/wiki/ailing