Meaning

noun English explorer who with John Speke was the first European to explore Lake Tanganyika (1821-1890)

noun Welsh film actor who often co-starred with Elizabeth Taylor (1925-1984)

noun a strong dark English ale

originUsually from Old English burhtun (fortified farmstead, farmstead near or belonging to a stronghold or manor), from burh + tun.

Etymology from Wiktionary, CC BY-SA 3.0