ETYMOLOGY
from Goemagot, the greatest of the British giants, according to Geoffrey of Monmouth;
altered after the biblical names Gog and Magog
EXAMPLE
“…Gogmagog was a geant · suiþe gret & strong
Vor aboute an twenti vet · me seiþ he was long …”
From: The Metrical Chronicle of Robert of Gloucester, c1325
Lexicophilia 