Emily Dickinson Lexicon

GLIB, a. [D. glibberen, glippen, to slide; glibberig, glib, slippery; W. llipyr; L. glaber, smooth; labor, to slide. This word contains the elements of slip. Qu. L. glubo, Gr. γλυφω. Class Lb, No. 27, 37.]

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.