forty-six-year-old
UK[ˈfɔːti sɪks jɪər əʊld]US[ˈfɔːrti sɪks jɪr oʊld]
adj
Being forty-six years of age.
n
A person who is forty-six years old.
Morpheme Breakdown
forty
six
year
old
forty
four tens
six
year
old
aged, ancient
Etymology
The term "forty-six-year-old" is a modern English compound adjective and noun formed by the straightforward combination of cardinal numbers and temporal nouns. Its logic is purely arithmetic and descriptive, built from the native English lexical elements "forty" (from Old English 'feowertig'), "six" (from Old English 'siex'), "year" (from Proto-Germanic jērą), and "old" (from Proto-Germanic aldaz). Unlike words with classical roots that underwent semantic abstraction, this compound's meaning remains entirely literal and transparent, directly summing the components to denote a person or thing that has existed for forty-six annual cycles. It exemplifies the analytic and compounding nature of English, where new, precise descriptors are readily created from existing number and age vocabulary without significant etymological evolution.
Analysis
Structure: forty + six + year + old
forty: From Old English 'feowertig', meaning "four tens". In this compound, it denotes the specific decade of age.
six: From Old English 'siex', meaning the number 6. In this compound, it specifies the unit within the decade.
year: From Old English 'gear', meaning a period of twelve months. In this compound, it is the unit of time measurement.
old: From Old English 'eald', meaning "aged, ancient". In this compound, it indicates the state of having existed for a specified time.
Examples
She is a forty-six-year-old architect from Toronto.
The study focused on a group of forty-six-year-olds.
He bought a forty-six-year-old bottle of whisky at the auction.