befog

/B IH0 F AA1 G/
verb
  1. 1

    To envelop in fog or smoke.

  2. 2

    To confuse, mystify (a person); to make less acute or perceptive, to cloud (a personโ€™s faculties).

  3. 3

    To obscure, make less clear (a subject, issue, etc.).

Source: https://en.wiktionary.org/wiki/befog