- teenage (adj.)
[teenage 词源字典]
- also teen age, teen-age; 1911, from teen + age (n.). Originally in reference to Sunday School classes. Teen-aged (adj.) is from 1922.[teenage etymology, teenage origin, 英语词源]
- teenager (n.)
- also teen ager, teen-ager; 1922, derived noun from teenage (q.v.). The earlier word for this was teener, attested in American English from 1894, and teen had been used as a noun to mean "teen-aged person" in 1818, though this was not common before 20c.