leave-taking 
noun
An act of saying goodbye: the leave-taking was formal, with none of her earlier displays of emotion...
- If this leave-taking is difficult, complex and conflict-filled for most young adults, it is doubly so for adoptees.
- You have to be prepared to let them experience the consequences of their disorganization, if your family's truly going to get its act together where leave-takings are concerned.
- One of the hallmarks of apraxia is the relative preservation of automatic or over learned speech sequences such as greetings, leave-takings and proverbs.