It's similar to Namaste. ' The Divine in Me Honours and bows to the Divine in You'. Keeping the 2 people linked but individual.You can see why phrases like 'You people' ' That lot'and so on are so offensive by removing Identity and Respect.
Many greetings come from blessings, like farewell from Fare Thee Well
See you around isn't quite the same is it..it DOES illustrate current mindset doesn't it....:)