hocus-pocus

Pseudo-Latinism. The interjection and noun are derived from pseudo-Latin magical incantations used by conjurers (formerly called “jugglers”) such as “hocus pocus, tontus talontus, vade celeriter jubeo” (by a particular 17th-century conjurer who allegedly adopted the moniker Hocus Pocus) and “hax pax max Deus adimax”. The suggestion that the term is a corruption of words from the Roman Catholic liturgy of the Eucharist, “hoc est enim corpus meum” (“this is my [i.e., Jesus’s] body”), was made in a sermon by the Archbishop of Canterbury, John Tillotson (1630–1694), but is not generally accepted.

The verb is derived from the noun.