Scenario

google

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late 19th century: from Italian, from Latin scena ‘scene’.

wiktionary

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From Italian scenario (a derivation of scena(“scene”)), from Latin scaena. See scene.

etymonline

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scenario (n.)

1868, "sketch of the plot of a play," from Italian scenario, from Late Latin scenarius "of stage scenes," from Latin scena "scene" (see scene). Meaning "imagined situation" is first recorded 1960, in reference to hypothetical nuclear wars.