Trifle

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Middle English (also denoting an idle story told to deceive or amuse): from Old French trufle, by-form of trufe ‘deceit’, of unknown origin. The verb derives from Old French truffler ‘mock, deceive’.

wiktionary

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From Middle English trifle, trifel, triful, trefle, truyfle, trufful, from Old French trufle(“mockery”), a byform of trufe, truffe(“deception”), of uncertain origin.

etymonline

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trifle (n.)

c. 1200, trufle "false or idle tale," later "matter of little importance" (c. 1300), from Old French trufle "mockery," diminutive of truffe "deception," of uncertain origin. As a type of light confection from 1755.

trifle (v.)

"treat lightly," 1520s, from trifle (n.). Earlier "cheat, mock" (c. 1300). Related: Trifled; trifling.