What is "agemates"

Usage examples of "agemates".

One by one, on Mid-summer Night, he and his agemates had set out from the river-valley settlement, heading into the mountains to stalk the carnivores of the high slopes.

He and his agemates had hunted in the sea for tasty mirrat, small finned swimmers which only migrated through the area at that time of the orbital cycle.

Long Hunt in the high-country ridges with the rest of his agemates, and could move through underbrush with no more noise than a passing thought.