deluding

/D IH0 L UW1 D IH0 NG/
verb
  1. 1

    To deceive into believing something which is false; to lead into error; to dupe.

  2. 2

    To frustrate or disappoint.

Source: https://en.wiktionary.org/wiki/delude, https://en.wiktionary.org/wiki/deluding