OpenEtymology

twelve-year-old

UKˌtwelv jɪər ˈəʊldUSˌtwelv jɪr ˈoʊld

Meaning

1adj

Being twelve years of age

2n

A person who is twelve years old

Structure

word structure
1
twelve
number
+
2
year
time unit
+
3
old
aged

Usage

She has a twelve-year-old brother who is very tech-savvy.

The book is aimed at the average twelve-year-old.

He got his first bicycle when he was twelve-year-old.

Etymology

The compound "twelve-year-old" is a modern English construction built from three foundational Germanic elements. "Twelve" originates from the Old English "twelf," a counting term literally meaning "two left" after ten, reflecting an ancient base-12 system. "Year," from Old English "gēar," denotes the cycle of seasons, a concept critical to age reckoning. "Old," from Old English "eald," carries the core sense of advanced age or duration. When combined in the hyphenated pattern common to English age descriptors, these morphemes create a precise adjectival and nominal formula: "of or being one who has lived through twelve annual cycles."

Analysis

Structure
twelve (number) + year (time unit) + old (aged)=twelvenumber+yeartime unit+oldaged

- twelve: From Old English twelf, meaning "two left (over ten)", of Germanic origin. - year: From Old English gēar, meaning "year", of Germanic origin. - old: From Old English eald, meaning "aged, ancient", of Germanic origin.

Twelve-year-old Etymology, Origin & Meaning | wordDNA