In*voke" (?), v. t. [imp. & p.
p. Invoked (?); p. pr. & vb. n.
Invoking.] [F. invoquer, L. invocare; pref.
in- in, on + vocare to call, fr. vox voice. See
Voice, and cf. 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.
Shak.