Spectacle

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Middle English: via Old French from Latin spectaculum ‘public show’, from spectare, frequentative of specere ‘to look’.

wiktionary

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From Middle English spectacle, from French spectacle, from Latin spectāculum(“a show, spectacle”), from spectō(“to see, behold”), frequentative of speciō(“to see”). See species.

etymonline

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spectacle (n.)

mid-14c., "specially prepared or arranged display," from Old French spectacle "sight, spectacle, Roman games" (13c.), from Latin spectaculum "a public show, spectacle, place from which shows are seen," from spectare "to view, watch, behold," frequentative form of specere "to look at" (from PIE root *spek- "to observe").