Related Clues:

• Parting word with an air kiss, perhaps
• Relative of aloha or shalom
• Father, in Xhosa, and a nickname for 36-Across
• Ta-ta in Turin
• "I'm out"
• "I must be off, old chap"
• Venetian's ''So long!''
• British "Bye-bye"
• "See ya," in Pisa
• Mobile message ender
• Italian "Toodle-oo!"
• Italian 'Bye!'
• "Hasta la vista"
• "Later!" somewhere
• 'Goodbye, Guido!'