"The Unggoy (Monachus frigus; Latin, "cold monk") are a sapient species of squat bipedal xeno-arthropodal vertebroid lifeforms in the unified races of the Covenant. They are the fourth species to be assimilated into the Covenant and the lowest-ranking species in the hierarchy. They suffer frequent mistreatment by almost every other race, particularly by the kig-yar, and are primarily used as laborers in peacetime and cannon fodder in times of war. Their race was one of the last to be absorbed into the Covenant and the second Covenant species to be encountered by humans. They are referred to as Grunts by humans, as they are considered weak in comparison to their superiors, because they perform the majority of the physical labor required by the Covenant and they lack the knowledge of combat compared to other Covenant species."
 
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