If you want your family to say, "farewell" the correct way to tell them to do so is by saying, "family say, farewell."
"Abschied"
farewell = nana
Bid their farewell means for someone to say goodbye.
You say it "Doviđenja"
Satan said farewell to Heaven when he challenged God.
Thank you (fa'afetai); farewell (tofa).
* Sayonara
Farvel
farvel
Totsiens
dowidzenia