purify (v.) Look up purify at Dictionary.com
early 14c., "free from spiritual pollution," from Old French purefier "purify, cleanse, refine" (12c.), from Latin purificare "to make pure," from purus "pure" (see pure) + combining form of facere "to make" (from PIE root *dhe- "to set, put"). Meaning "free from extraneous matter" is recorded from mid-15c. Related: Purified; purifying.