one-hundredth

The word "one-hundredth" is a transparent, analytic compound formed entirely within English from its Germanic number system. The element "one," tracing to Proto-Germanic ainaz and ultimately Proto-Indo-European óynos, establishes the singular unit. It is combined with "hundred," from Proto-Germanic hundaradą, a compound itself meaning "count of hundred." The critical suffix "-th," descended from the Old English ordinal marker "-þa," is attached to the cardinal number "hundred" to transform it into an ordinal ("hundredth") and, when prefixed by "one," specifically denotes a single part of a division into one hundred equal portions. This logical construction directly mirrors the mathematical concept it represents, showcasing English's capacity for creating precise fractional terminology through the combination of native number words and grammatical suffixes.

Structure: one (1) + hundred (100) + th (ordinal/fractional suffix) - one: From Old English 'ān', meaning the number 1. Functional role: cardinal number root. - hundred: From Old English 'hundrēd', meaning the number 100. Functional role: cardinal number root. - th: From Old English '-þa', '-þe', an ordinal number suffix used to form fractions and ordinals. Functional role: derivational suffix.