Ettins
From The Stargate Omnipedia
Cimmerian term for those whom the Norse gods oppose. The term is particularly used to describe the Goa'uld who would commandeer any Asgard-protected world and oppress the population. Fortunately, a treaty between the Asgard and the Goa'uld prevents such tampering.
KEY EPISODE
Thor's Chariot - Ettins (Goa'uld) arrive on Cimmeria to take advantage of the absence of Thor's Hammer.