Everyday or Common Honorifics

[Renicus Ferrarius]

I know the Romans had honorifics in the form of titles, such as Augustus, as well as the use of "dominus" and "domina", particularly by servants. But was there a Roman form of Mister (or Signore, for that matter), which one man of the same status would call another? Or did they simply use "civis" (citizen)?

[Nathan Ross]

'Dominus' was actually used quite widely, even politely among friends and equals. More common in that context would be 'frater' (brother).

There's a thread discussing the subject here:

Language