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Webster 1913 Edition

Noun.

[AS.

spelc

spilc

, a little rod by which a thing is kept straight, a splint for binding up broken bones, akin to Icel.

spelkur

, pl., a splint. Cf.

a splinter.]

A small stick or rod used as a spike in thatching; a splinter.

[Prov. Eng.]

Grose.

Noun.

A splinter; a small stick or rod used in thatching.

spelk ‎(plural spelks)

(Northern English) A splinter, usually of wood.
(Northern English) A wooden splinter caught under the skin.
(aeronautics, space) Unusably short lengths of fibre-reinforced material, such as prepreg.

Todd's Geordie Words and Phrases, George Todd, Newcastle, 1977
The New Geordie Dictionary, Frank Graham, 1987, ISBN 0946928118
A Dictionary of North East Dialect, Bill Griffiths, 2005, Northumbria University Press, ISBN 1904794165
Newcastle 1970s, Scott Dobson and Dick Irwin,
A List of words and phrases in everyday use by the natives of Hetton-le-Hole in the County of Durham, F.M.T.Palgrave, English Dialect Society vol.74, 1896,