As nouns the difference between brake and keep
is that
brake is a fern; bracken or
brake can be a thicket, or an area overgrown with briers etc or
brake can be a tool used for breaking flax or hemp or
brake can be (
label) an ancient engine of war analogous to the crossbow and ballista or
brake can be (obsolete) a cage while
keep is (obsolete) care, notice.
As verbs the difference between brake and keep
is that
brake is to bruise and crush; to knead or
brake can be to operate (a) brake(s) or
brake can be (
lb) (
break) while
keep is to continue in (a course or mode of action); not to intermit or fall from; to maintain.