Scottish National Dictionary (1700–)
COOTHIN, Couthin, Cuthin, Ku(i)thin, n. The coal-fish, Pollachius virens, in its second or third year (Ork. 1866 Edm. Gl., cuthin; 1879 Jam.5, couthin; 1929 Marw., kuthin). Cf. Cuddie, n.1, and Cuithe. [′kuθɪn; ′kʌðin, ′køð- (Marw.)]
Ork. 1806 P. Neill Tour through . . . Ork. and Sh. 39:
After the first year the sillock becomes a cooth: it is next called a coothin or cuddin; and when full grown, the same fish is called a sethe. Ork. 1929 Marw. s.v. kuithe:
After the kuithe (piltock) stage it is called a kuithin, and ultimately a saithe.
You may wish to vary the format shown below depending on the citation style used.
"Coothin n.". Dictionary of the Scots Language. 2004. Scottish Language Dictionaries Ltd. Accessed 16 Dec 2017 <http://www.dsl.ac.uk/entry/snd/coothin>
Try an Advanced Search