Χαιρετε!
How did people in Classical Greek times say, “Hello” and “Goodbye?”
Check Sprechen sie Attisch? by Eduard Johnson. If you want an Ørbergized version: ἆρα λέγεις Ἀττικιστί;. You already figured out “hello.”
Ἔρρωσο 
Χαιρετε!
How did people in Classical Greek times say, “Hello” and “Goodbye?”
Check Sprechen sie Attisch? by Eduard Johnson. If you want an Ørbergized version: ἆρα λέγεις Ἀττικιστί;. You already figured out “hello.”
Ἔρρωσο