invoke
invoke (ĭn-vōkʹ) verb, transitive
invoked, invoking, invokes
1. To call on (a higher power) for assistance, support, or inspiration: "Stretching out her hands she had the air of a Greek woman who invoked a deity" (Ford Madox Ford).
2. To appeal to or cite in support or justification.
3. To call for earnestly; solicit: invoked the help of a passing motorist.
4. To summon with incantations; conjure.
5. To resort to; use or apply: "Shamelessly, he invokes coincidence to achieve ironic effect" (Newsweek). See synonyms at enforce.
[Middle English envoken, from Old French invoquer, from Latin invocāre : in-, in. See in-2 + vocāre, to call.]
invokʹer noun