Webster's Revised Unabridged Dictionary · 1913

Bumpkin

Bumpkin ({not transcribed}) , noun

[The same word as bumkin, which Cotgrave defines thus: “Bumkin, Fr. chicambault, the luffe-block, a long and thick piece of wood, whereunto the fore-sayle and sprit-sayle are fastened, when a ship goes by the winde.” Hence, a clumsy man may easily have been compared to such a block of wood; compare OD. boomken a little tree. See Boom a pole.]

An awkward, heavy country fellow; a clown; a country lout.
Bumkin, Fr. chicambault, the luffe-block, a long and thick piece of wood, whereunto the fore-sayle and sprit-sayle are fastened, when a ship goes by the winde. — W. Irving
Bashful country bumpkins.