[? a. MDu. lasche (prob. pronounced lasχə; mod.Du. lasch, pronounced las) piece cut out, flap.] (See quots.)

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1864.  Couch, Brit. Fishes, II. 125. A hook baited with a slice (termed a lask) from the side of a mackarel.

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1874.  Wood, Nat. Hist., 581. To pass the hook through the thicker end of the strip—technically called a ‘lask.’

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