Uppity

google

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late 19th century: a fanciful formation from up.

wiktionary

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Fanciful extension of up +‎ -ity/ -ety, an extended form of -y; compare biggity and hippity (and possibly also persnickety, pernickety). [1] [2] First attested around 1880 in Uncle Remus by Joel Chandler Harris to describe Jack Sparrer (Jack Sparrow), who tattled on Br'er Rabbit (see quotations below). Compare uppish.

etymonline

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uppity (adj.)

1880, American English, from up + -ity; originally used by blacks of other blacks felt to be too self-assertive (first recorded use is in "Uncle Remus").