Adolescent: The Grammar of Growing Up
Few English words encode the philosophy of human development as precisely as adolescent. Borrowed into Middle English around 1440 from Old French, itself from the Latin present participle *adolēscēns*, the word means 'one who is in the process of growing up.' Its companion adult — from the past participle *adultus* of the same verb — means 'one who has grown up.' Together they form one of the most instructive grammatical doublets in English.
The Latin Verb: adolēscere
The verb *adolēscere* means 'to grow up, to come to maturity.' It compounds *ad-* ('toward') with *alēscere* ('to grow'), an inchoative of *alere* ('to nourish'). Inchoative verbs denote the beginning or progressive unfolding of an action — thus *alēscere* is 'to begin growing.' The present participle *adolēscēns* ('growing up') and past participle *adultus* ('grown up') were both used substantively in classical Latin (Lewis & Short, 1879).
The PIE Root: *h₂el-
The root \*h₂el- ('to grow, to nourish') is one of the most productive in Indo-European (Watkins, 2011). In Latin: *alere* (nourish), *alimentum* (food → aliment), *alumnus* (foster child), *prōlēs* (offspring → proletariat), *abolēre* (to destroy = to un-grow → abolish), *coalēscere* (to grow together → coalition).
In Germanic, regular sound changes produced Proto-Germanic *\*aldaz* ('grown'), giving Old English eald ('old'). The semantic shift — 'to grow' → 'grown' → 'old' — is natural and cross-linguistically attested. From *eald*: elder, eldest, alderman (OE *ealdormann* 'chief'). The word world itself partly descends from this root: OE *weorold* from PGmc *\*wer-aldiz* ('age of man'), where the second element is from *\*h₂el-* (OED, s.v. 'world').
The Adolescent/Adult Doublet
The relationship deserves emphasis:
- Adolescent ← *adolēscēns* (present participle): 'one who IS growing up' - Adult ← *adultus* (past participle): 'one who HAS grown up'
The difference is purely one of grammatical aspect — present vs. completed. English preserves this Latin aspectual distinction as a fossilised semantic pair.
Roman Legal Category
In Roman law, *adolēscentia* designated the period from the *toga virilis* (~age 15) to approximately age 25, when full legal capacity was attained — a broader range than modern usage. The Roman *adolēscēns* was a precisely defined legal status with implications for guardianship and property rights.
The Modern Concept: G. Stanley Hall
The modern concept of adolescence as a distinct psychological stage dates to G. Stanley Hall's *Adolescence* (1904), the first major scientific treatment. Hall characterised it as a period of 'storm and stress,' arguing the turmoil recapitulated evolutionary stages. Though many specifics have been superseded, his insight that adolescence requires its own developmental framework transformed psychology and education.
References
- De Vaan, M. (2008). *Etymological Dictionary of Latin*. Brill. - Hall, G. S. (1904). *Adolescence*. 2 vols. D. Appleton. - Lewis, C. T. & Short, C. (1879). *A Latin Dictionary*. Clarendon Press. - OED, s.v. 'adolescent,' 'adult,' 'world.' - Watkins, C. (2011). *American Heritage Dictionary of Indo-European Roots*. 3rd ed.