Related Clues:

• Roman salutation
• Fifth in NYC
• 'Keep it real...'
• ''Greetings, Caesar''
• ''Hi, Claudius''
• Farewell in 41-Down
• 'Later, dahling!'
• "Toodles"
• 'Bye-bye!'
• Galba's greeting
• ''Good morning, Caesar''
• Greeting at the Forum
• Latin for hail
• ''Hail!'' to Horace
• NYC's Fifth, for one