Noah Webster
Glib
GLIB, adjective [Latin glaber, smooth; labor, to slide. This word contains the elements of slip. Qu. Latin glubo.]
1. Smooth; slippery; admitting a body to slide easily on the surface; as, ice is glib
2. Smooth; voluble; easily moving; as a glib tongue.
GLIB, noun A thick curled bush of hair hanging down over the eyes. [Not in use.]
GLIB, verb transitive To castrate.
1. To make smooth.