the.com/invocation

the verbal magic spell that summons gods, lawsuits, or your boss's full attention

means A formal calling-upon — of a deity, an authority, a power, or a legal right — usually spoken aloud at the opening of something solemn.

from From Latin invocare, 'to call upon,' built from in- ('upon') plus vocare ('to call') — itself rooted in vox, 'voice,' the same source feeding 'vocal,' 'vocation,' and 'voice' itself. The word arrived in English through Old French in the late Middle Ages, carrying its churchy, ceremonial weight: to invoke was literally to call a name into the room and expect something to answer.

legal weight
Invoking a right can shut down police questioning instantly
programming
Calling a function is literally called method invocation
ancient roots
Comes from Latin 'invocare,' meaning to call upon
poetry tradition
Epics open by invoking the Muse for help
vs prayer
It commands the divine rather than politely requesting
for instance

ghostbusters ecto-1 summoning — the 1984 film's iconic scene where the ghostbusters are called to their first major job at the new york public library

burning man city blessing — annual ritual in nevada desert since 1986 where participants invoke the gathering's spiritual theme through ceremony

nasa apollo 13 prayer — april 13, 1970 when flight controllers invoked emergency procedures after the oxygen tank explosion 200,000 miles from earth

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