Have astronomers ever observed a violet shift like they have blue shifts and red shifts?

Question: Have astronomers ever observed a violet shift like they have blue shifts and red shifts?
- Keywords:
  astronomer,
  blue,
  red,
  violet
Asked by Mason The Amazing :) to Andrew, Hina, Ian, Kathryn, Leah-Nani, Xu on 14 Jun 2018.
- Kathryn Burrows answered on 14 Jun 2018:
  
  The simple answer is yes. It is a problem of language only. People talk blue shifted or red shifted to mean frequency increased or decreased, it does not necessary correspond to the colour blue or red. You can have a blue shift which ends up green if you like. I agree it is confusing terminology!

Question: Have astronomers ever observed a violet shift like they have blue shifts and red shifts?