deseleccionar

to unselect (to cancel a previous selection, especially by removing a mark from a tick box); to unselect (to reverse the previous selection of); to deselect (to remove from an existing selection); to deselect (to not select; to rule out of selection); to uncheck (to remove a checkmark)

Etymology tree Latin dis- Old Spanish des- Spanish des- Spanish seleccionar Spanish deseleccionar From des- + seleccionar.