thirty-nine
thirty-nine
UK[ˈθɜːti naɪn]US[ˈθɜːrti naɪn]
cardinal number
The number equivalent to the product of three and thirteen; one more than thirty-eight, or nine less than forty; 39.
Morpheme Breakdown
thirty
nine
thirty
30
nine
9
Etymology
The word "thirty-nine" is a transparent compound numeral formed within the Germanic branch of the Indo-European language family. Its first element, "thirty," itself derives from the Old English þrītiġ, meaning "three tens," built on the ancient root for "three." The second element, "nine," originates from the Proto-Indo-European root h₁néwn̥, which consistently signifies the numeral across many descendant languages. The logic of the compound is purely arithmetic, directly combining the value of three tens (30) with the value of nine units (9) to denote the cardinal number 39. This additive, decimal-based method of number formation is characteristic of the English numeral system and reflects its Germanic heritage.
Analysis
Structure: thirty (30) + nine (9)
- thirty: From Old English þrītiġ, meaning "thirty". A compound of þrīe (three) and -tiġ (a suffix denoting multiples of ten), of Germanic origin.
- nine: From Old English nigon, of Germanic origin; related to Dutch negen and German neun, from an Indo-European root shared by Latin novem and Greek ennea.
Examples
She celebrated her thirty-ninth birthday with a quiet dinner.
The final score was thirty-nine to twenty-seven.
Thirty-nine articles form the historic doctrinal foundation of the Church of England.