英语词源字典 - 在线词源网站

conjure (v.)[conjure 词源字典]: late 13c., "command on oath," from Old French conjurer "invoke, conjure" (12c.), from Latin coniurare "to swear together; conspire," from com- "together" (see com-) + iurare "to swear" (see jury (n.)). Magical sense is c. 1300, for "constraining by spell" a demon to do one's bidding. Related: Conjured; conjuring. Phrase conjure up "cause to appear in the mind" (as if by magic) attested from 1580s.[conjure etymology, conjure origin, 英语词源]
gramary (n.): early 14c., gramarye, "grammar," also "learning, erudition," hence "magic, enchantment" (late 15c.), a variant of grammar; perhaps from Old French gramare, gramaire "grammar," also "book of conjuring or magic" (hence Modern French grimaire "gibberish, incomprehensible nonsense"). Gramarye was revived by Scott ("Lay of the Last Minstrel," 1805) in the "dark magic" sense.
legerdemain (n.): early 15c., "conjuring tricks," from Middle French léger de main "quick of hand," literally "light of hand," from léger "light" in weight (from Latin levis "light;" see lever) + main "hand" (from Latin manus; see manual).
conjuror: "A performer of conjuring tricks", Middle English: partly from conjure, partly from Old French conjureor, conjurere, from medieval Latin conjurator, from Latin conjurare 'conspire' (see conjure).