pristine

The word 'pristine' entered English in the 16th century from the Latin 'pristinus', meaning "former, early, original." This Latin term is likely derived from 'pris-' or 'pri-', a root related to 'prior' (before). The original English sense was "belonging to the earliest period, primitive." Over time, the meaning shifted from "original" to the positive qualities associated with an original, untouched state. The modern senses of "unspoiled" and "spotlessly clean" thus evolved from the core idea of something in its pure, initial condition, free from the corruption or damage of later time.

The word is a simplex loanword from Latin. It is not productively formed from separable English morphemes.