The story
From Old Norse Grim (“male given name”) (Grimr, Grimnir, Grim; masked one, mask; Odin) + -s + býr (“village”). Equivalent of Grim + -s- + -by.
Etymology from Wiktionary, CC BY-SA 4.0.
Grimsby
Today it means: A large town and seaport on the Humber in North East Lincolnshire district, Lincolnshire, England. Full definition →