Dack
This was the name of a character in a story I wrote for school. He was the coolest action hero ever, based of Dash Rendar of Star Wars, but I wanted his to be a harder name that enemies could say like a curse, and lovers could say like a slowly fading memory. Rhymes with 'tack.'
Dack was originally an English surname coming from the Germanic word dachs meaning "badger." It was probably originally a nickname for a person with badger-like qualities (such as sharp features or nocturnal habits). In the Star Wars universe, Dack Ralter was Luke Skywalker's gunner in the battle of Hoth in The Empire Strikes Back.