blow off - come off due to an explosion or other strong force

chop off, lop off, cut off - remove by or as if by cutting; "cut off the ear"; "lop off the dead branch"

unsolder - remove the soldering from

fall off - come off; "This button had fallen off"

divide, part, separate - come apart; "The two pieces that we had glued separated"

go forth, leave, go away - go away from a place; "At what time does your train leave?"; "She didn't leave until midnight"; "The ship leaves at midnight"