drivel
n.
early 14c., drevel "saliva, slaver," from drivel, v.. Meaning "idiotic speech or writing" is from 1852.
v.
Old English dreflian "to dribble or run at the nose, slobber," from Proto-Germanic *drab-, from PIE *dher- (1) "to make muddy, darken." Meaning "to speak nonsense" is mid-14c. Related: Driveling, drivelling.