from The Century Dictionary and Cyclopedia
- n. This initial combination, in which the g, formerly pronounced, is now silent, occurs in words of Anglo-Saxon origin, as gnat, gnaw (and obs. gnast, guide, etc.); words of Low German (rarely of High German) or Scandinavian origin, in which gn- is variable to or stands for kn-, as gnag, gnar, gnar, gnarl, gnarl, gnash, gnast, gneiss, etc.; words of Latin or Greek origin, as gnarity, Gnaphalium, gnthitis, gnome, gnomon, etc.; words of other foreign origin, as gnu, Gnetum, etc.
Sorry, no etymologies found.