Trampoline

google

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late 18th century: from Italian trampolino, from trampoli ‘stilts’.

wiktionary

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From Spanish trampolín and/or Italian trampolino; in English, a genericized trademark based on the Spanish word trademarked in 1936.

etymonline

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trampoline (n.)

1798, from Spanish trampolin "springboard," and Italian trampolino, from trampoli "stilts," from a Germanic source (compare Low German trampeln "trample") related to tramp (v.).