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bumpkin

/ˈbʌmpkɪn/ noun

In Latin: petrō, rūsticus Wiktionary

Origin

From Dutch boomken (“shrub, little tree”), equivalent to boom + -kin. Note that the English word boom is etymologically related to the aforementioned in the sense of "large stem", or "big tree". Compare German Baumke, Bäumchen.

From Wiktionary, via Kaikki.org (CC BY-SA)