horning

noun4

1. •
   The activity of blowing the horn of a train.
2. •
   (US, historical) A mock serenade with tin horns and other discordant instruments by way of showing public disapproval.
3. •
   The appearance of the Moon when increasing, or in the form of a crescent.

   • the Horning, which is the cause why they set up in their Steeples a Crescent — 1646
4. •
   (Scotland) The issuing of letters of horning.