horning

/HH AO1 R N IH0 NG/
verb
  1. 1

    (of an animal) To assault with the horns.

  2. 2

    To furnish with horns.

  3. 3

    To cuckold.

noun
  1. 1

    The activity of blowing the horn of a train.

  2. 2

    The appearance of the Moon when increasing, or in the form of a crescent.

  3. 3

    A mock serenade with tin horns and other discordant instruments by way of showing public disapproval.

  4. 4

    The issuing of letters of horning.

Source: https://en.wiktionary.org/wiki/horn, https://en.wiktionary.org/wiki/horning