Corresponds to Du. glibberig (not found in MDu.), late MLG. glibberich (mod. LG. glibbrig).
Cognate forms are Eng. glib a.; Du. (dial.) glib curds; Eng. glibber a. and v. = Du. glibber adj., glibberen vb.;
cf. also Du. glippen,glipperen to slip, slide, glipperig slippery.
It is possible that the words may stand in ablaut-relation to OHG. gleifsloping, oblique,
or that they may be onomatopœic formations suggested by the wk. grade glid of Du. glijden,Eng. glide v.
1601 - Tthe Comedie of Pasquil and Katherine, John Marston;
see Example below
From: Old English Drama
Iacke (Jacke) Drums Entertainment:
Or, The Comedie of Pasquill and Katherine
Students' Facsimile Edition