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облагородявам

oblagorodjavam

(to purify from what is gross, coarse, vulgar, inelegant, low, and the like; to make elegant or excellent; to polish)

очиствам се

očistvam se

(to become pure)

пречиствам

prečistvam

(to reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy)