Webster's Revised Unabridged Dictionary · 1913

Invoke

Invoke , transitive verb

[French invoquer, Latin invocare; pref. in- in, on + vocare to call, from vox voice. See Voice, and compare Invocate.]

To call on for aid or protection; to invite earnestly or solemnly; to summon; to address in prayer; to solicit or demand by invocation; to implore; as, to invoke the Supreme Being, or to invoke His and blessing.
Go, my dread lord, to your great grandsire's tomb,... Invoke his warlike spirit. — Shakespeare