Meaning

noun English admiral who defeated the French fleets of Napoleon but was mortally wounded at Trafalgar (1758-1805)

noun any of several wrestling holds in which an arm is passed under the opponent's arm from behind and the hand exerts pressure on the back of the neck

originFrom Middle English Neil + -son and Nell + -son. * In the United States, also an Anglicisation of North Germanic (Scandinavian) surnames such as Nilsen, Nielsen, and Nilsson, equivalent to "son of Nicholas".

Etymology from Wiktionary, CC BY-SA 3.0