Wiktionary
m'lord
n. (label en British now often historical or jocular) my lord (qualifier: used to address peers temporal, judges, etc).
Usage examples of "m'lord".
Solomon's Mines, Trade Winds, John Bull, Cellars Wineshop, the Island Shop, the English China House, Kelly's, Lightbourns, M'Lords, Mademoiselle, The Nassau Shop, the Perfume Box, Robertson and Symonette, Sue Nan's, Vanity Fair.