I'faith, nuncle. I would use to call them Dame and Sire.
It didn't last long as I drove them nuts, what with all the "Prithee" that usually tagged along. He whipped all the "marry, nuncle, sirrah, i'faith and prithee" outta me with my own jester's belt, the one with all the bells.
This was when I had a part in the schools play, a variation of King Lear.