kyen.

1929 F. C. Bowen Sea Slang 80 A kye. A rating who is mean with his money.

1946 J. Irving Royal Navalese 105 Kye, a mean, unworthy sort of fellow.

1943 J. L. Hunt & A. G. Pringle Service Slang 42 Kie, seaman's slang for cocoa.

1943 S. J. Baker Pop. Dict. Austral. Slang (ed. 3) 46 Kye, chocolate. (R.A.N. slang.)

1962 W. Granville Dict. Sailors' Slang 68/2 Kye, ship's cocoa which used to be issued in slabs, already sweetened, cut as needed and dissolved in boiling water to the desired consistency. The origin of the word is dialectal, from the adjective kyish, muddy-looking, brown.

1968 Times 17 Apr. 6/6 Kye, as the service names drinking chocolate, is to end.