An Etymological Dictionary of the German Language/Annotated/gäbe
gäbe, adjective, ‘acceptable, in vogue, stylish,’ from Middle High German gœbe (Old High German *gâbi), adjective, ‘acceptable, dear, good’; Gothic *gêbi- is related to giban (see geben), just as nêms is to niman (see gänge, angenehm); compare Old Icelandic gœ̂fr, ‘salutary,’ Dutch gaaf, ‘suitable.’