pure
From Middle English pure, pur, from Old French pur, from Latin pūrus ("clean, free from dirt or filth, unmixed, plain"), from Proto-Indo-European *pewH- ("to cleanse, purify").
A person who is described as pure is considered to be morally good, especially because they have no sexual experience or sexual thoughts.
PURE definition: free from anything of a different, inferior, or contaminating kind; free from extraneous matter. See examples of pure used in a sentence.
Idiom be as pure as the driven snow (Definition of pure from the Cambridge Advanced Learner''s Dictionary & Thesaurus © Cambridge University Press)
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