Other forms: conjuring, conjures, conjured
To conjure is to make something appear as if by magic. A rabbit out of a hat, a rope out of an empty sleeve.
The stage magician is the literal case, and conjuror is the old name for the job. The figurative sense is commoner and rather more useful: a smell can conjure a whole childhood, and a writer conjures a scene from three details. It very often takes up — conjure up an image, conjure up a meal from what is left in the fridge — and that phrasal form is the one you will hear most. The trick itself is a conjuring trick.
To conjure was to swear together. Latin coniūrō meant to take an oath jointly, and so to conspire, and English kept the binding force of the oath and turned it on spirits.
Proto-Indo-European
*h₂yew-
Latin
coniūrō — to swear together; conspire
Old French
conjurer
Middle English
conjuren
English, today
conjure
Built from
From Middle English conjuren, from Old French conjurer, from Latin coniūrō (“to swear together; conspire”), from con- (“with, together”) + iūro (“to swear or take an oath”).
Etymology from Wiktionary, CC BY-SA