Orig: a primitive root; to be weak, i.e. (figuratively) to despond (causatively, rebuke), or (of light, the eye) to grow dull:-- darken, be dim, fail, faint, restrain, X utterly.
1) to grow weak, grow dim, grow faint, falter, be weak, be dim, be darkened, be restrained, be faint, fail 1a) (Qal) to grow dim, grow faint 1b) (Piel) to faint, grow weak, grow faint