Gog

Etymology 1
From.

Proper noun

 * , a figure (or two figures) mentioned in the Hebrew Bible in Ezekiel 38 and 39, and variously identified by later writers with Satan or certain hostile nations.

Etymology 2
From.

Noun

 * : a person from North Wales.

Etymology
or.

Noun

 * 1)  a person from North Wales
 * 2)  North Walian dialect of the Welsh language
 * 1)  North Walian dialect of the Welsh language

Mutation
The word Gog is not normally mutated.