Definition of "seck"

[…] barn-fans, an' flails, an' fleers, / An' canasses, an' secks; / An' cheeks o' doors, an' doors themsel's, / Wi' broken ban's an' snecks; […]

1884, David Grant, Lays and Legends of the North: And Other Poems and Songs, Humorous and Grave, Original and Translated, page 3

The kittlings ligging on the secks […]

1884, Streatfeild, Lin. and Danes, 264, 357

... a rough seck undher him, a bit o' flannel hardly coverin' him above, an' he looked like dyeath.

1894, John Trafford Clegg, David's Loom: A Story of Rochdale's Life in the Early Years of the Nineteenth Century, page 30

This seck is elding to keep us fra starving!

1912 [????], Walter William Skeat, English dialects from the eighth century to the present day. Repr, page 117