English
age-mate
From age + -mate.
Formed from age + -mate
Proto-Indo-European *h₂ey- ‘vital force’
…
Latin aetātem
Vulgar Latin *aetāticum
Old French eage ‘age’
Middle English age
English age
Today it means
noun One who is the same age as another.
Language periods are conventional ranges, not dates for this word.
Etymograph / age-mate