the word 'unadulterated' is built upon the latin verb adulterare, which meant "to corrupt, to falsify, or to debase," particularly by adding inferior substances. this verb itself is derived from adulter, meaning "an adulterer," suggesting a metaphor of impurity through illicit mixing. the english verb 'adulterate' was formed from this latin root, and the prefix 'un-' (meaning "not") was added to create its opposite. therefore, the literal sense of "not corrupted by admixture" evolved into its modern meanings of purity, genuineness, and completeness.

Structure: un (not) + adulterate (to corrupt) + ed (adjective suffix) - un: a prefix of germanic origin (old english) meaning "not". - adulterate: from latin adulterare meaning "to corrupt, to falsify". - ed: a suffix of germanic origin (old english) forming adjectives from verbs or nouns.