EXORDIUM

PRONUNCIATION: (ig/eg-ZOR-dee-uhm, ik-SOR-)

MEANING: noun: The beginning or introductory part of anything, especially of a discourse, treatise, etc.

ETYMOLOGY: From Latin ex- (out, from) + ordiri (to begin). Earliest documented use: 1531.

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EXORCIUM - the expulsion of demons

EXFORDIUM - just can't spend that kind of money on it any more...

EXORADIUM - the "skin" of radium that accumulates on the outside of pellets of Uranium as they slowly undergo radioactive decay