Answer: addio

AnswerCrossword Clue
ADDIOFirenze farewell (var.)
ADDIOTo get to 25 from 15
ADDIOFlorentine farewell
ADDIOFarewell: It.
ADDIOFirst word of the quartet in "Boheme."
ADDIOFarewell, in Italy.
ADDIOFarewell, in Roma.
ADDIOGoodbye, in Genova
addio(Italian) goodbye
addiogood-bye