The word "valediction" has several meanings, but the most common one refers to a farewell or an expression of goodwill at the end of a letter, conversation or other communication. Full definition
If his Broadway debut ends up being a farewell to the kind of characters who've made his reputation, it's a remarkable valediction. (slantmagazine.com)
The film was helmed by producer Jeff Deutchman, who previously shepherded the Obama valediction 11/4/08 using a very similar format. (avclub.com)
Among Simon's more memorable animal rescues was that of an oft - injured racehorse named Valediction, in May 2014. (animals24-7.org)