Goodbye! I'll miss you so much! is what i did for a farewell meeting with my inlaw cousin. She was leaving the country. Maybe "I'll remember you". It depends... this is just for a girl.
If you want your family to say, "farewell" the correct way to tell them to do so is by saying, "family say, farewell."
farewell = nana
Ciao! (THE MOST USUAL GREETING both for meeting and for farewell) Pronto? / Pronto! (at the telephone, for example - ok?) Salve! ( = Hi! )
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