agemate\EYJ-meyt\,
noun:
A person of about the same age as another.
She tolerates the family, especially an agemate named Isabelle, although they kid her about getting letters from a mysterious swain every day.
-- Faye Moskowitz, "Her face in the Mirror"
She had no agemate in that house, no one she could think of as an ally.
-- Julie Orringer, "The Invisible Bridge"
Agemate entered English in the late 1500s when the word mate meant "guest" in Old English.
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