relevant (adj.) Look up relevant at Dictionary.com
"pertinent to the matter at hand," 1550s, from Medieval Latin relevantem (late 15c.), present participle of Latin relevare "to lessen, lighten" (see relieve). Originally a Scottish legal term meaning "take up, take possession of property;" not generally used until after 1800. Relevance is from 1733 (relevancy in the same sense is recorded from 1560s).