In a bar not too far off the road, a man walks in. his boots clattering on the wooden floor. The bar is noticeably empty with only a few guys still around either drinking or chatting. Not too surprising since it is already the evening and they probably went home. The smell of smoke and liquor still hangs in the air like a fly caught in a web. The man in the trench coat pulls himself on a stool near the counter. His face covered by a bandanna and the brim of his hat obscuring the view of his eyes. The bartender, who had been cleaning a beer glass, looks up.
"So what'll it be, stranger?"
The man responds in a gruff and tired voice. "Dark and Stormy."
Patterns in surnames: There are many ways a surname could have evolved over centuries. One possibility is migration. A Roman name may have traveled to France and hence to England where it was later Anglicized. Case in point - the surname Lawrence went from Laurentius (Roman) to Laurent (French) to Lawrence (English) and then to Lowry (Scottish). There is also natural etymological evolution. For example, a Middle English spelling may have evolved to a modern English spelling (e.g. Stiward to Stewart). Where did your character's Surname come from?