Hassle

google

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early 20th century: origin uncertain; perhaps a variant of hustle.

wiktionary

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Unknown. Probably from US Southern dialectal hassle(“to pant, breathe noisily”), possibly from haste +‎ -le(frequentative suffix).

etymonline

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hassle (n.)

"fuss, trouble," 1945, American English (in "Down Beat" magazine), perhaps from U.S. Southern dialectal hassle "to pant, breathe noisily" (1928), of unknown origin; or perhaps from hatchel "to harass" (1800), which may be a variant of hazel, the name of the plant that furnished switches for whippings. Noted in 1946 as a show biz vogue word.

hassle (v.)

1951, from hassle (n.). Related: Hassled; hassling.