English

adultescent

Blend of adult + adolescent.

Proto-Indo-European *h₂el- ‘to grow’

…

Latin olēscō ‘to grow’

Latin adolescō ‘to grow up’

Latin adultus ‘grown up’

French adulte

English adult

Middle English adolescent

Today it means

noun An adult who continues to participate in and enjoy youth culture.

Language periods are conventional ranges, not dates for this word.

Etymograph / adultescent