Meaning

verb summon into action or bring into existence, often as if by magic

verb cite as an authority; resort to

verb request earnestly (something from somebody); ask for aid or protection

originFrom Middle English *invoken, envoken, borrowed from Old French envoquer, from Latin invocāre (“to call upon”), itself from in- + vocare (“to call”). Doublet of invocate.

Etymology from Wiktionary, CC BY-SA 3.0