centigrade

The word 'centigrade' is a modern scientific coinage from the late 18th century, constructed directly from Latin roots to describe a scale of one hundred degrees. It combines centi-, meaning 'hundred', with -grade, meaning 'step' or 'degree', to literally signify a scale divided into one hundred steps. This term was originally applied to the Celsius temperature scale, which precisely defines the interval between the freezing and boiling points of water as one hundred degrees. The logic is transparently mathematical, reflecting the Enlightenment-era preference for decimal systems and precise, Latinate terminology in scientific measurement.

Structure: centi (hundred) + grade (step, degree) - centi: From Latin centum (hundred). A prefix denoting one hundred or one hundredth. - grade: From Latin gradus (step, degree). A noun-forming element indicating a stage or level in a scale.