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The etymological origins of the word lie in the Christian Latin passus, (stemming from pati, patior- to suffer) and first appearing in the 2nd century precisely to describe the travails and suffering of Jesus in this present context. The word passion has since taken on a more general application. The term the Agony of Jesus is sometimes used alternately, although is generally more specifically applied to Jesus' agony of mind while praying before his arrest: the Agony in the Garden [of Gethsemane].
Those parts of the four Gospels that describe these events are known as The "Passion narratives". The non-canonical Gospel of Peter is also a Passion narrative.
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