keelson

(kel′sən, kēl′-)

noun

a longitudinal beam or set of timbers or metal plates fastened inside the hull of a ship along the keel to add structural strength

Origin: prob. via Du kolsem < Dan kjølsvin, altered (infl. by svin, swine) < kjølsvill < kjøl, keel + sville, sill

See keelson in American Heritage Dictionary 4

noun
Nautical

A timber or girder fastened above and parallel to the keel of a ship or boat for additional strength.

Origin:

Origin: Alteration (influenced by keel¹)

Origin: of Middle English kelswin

Origin: , probably from Old Norse *kjölsvīn

Origin: : kjölr, keel

Origin: + svīn, swine, timber; see sū- in Indo-European roots

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