Cran

Gaelic.

Full definition of cran

(plural crans or cran)

(obsolete) a measure of herrings, either imprecise or sometimes legally specified; also rarely a barrel made to hold such a measure

1800 Dec., Sir Richard Phillips, The Monthly magazine, Volume 10, No. 66, page 486:Very flattering indeed has been the success of the fishermen; and many boats have come in loaded, averaging thirty or forty crans each (every cran estimated at 1,000 herrings), and disposed of their cargoes at nine shillings per cran; but the price has been since raised to fifteen shillings.
1960, Ewan MacColl, Singing the Fishing:... And fish the knolls on the North Sea Holes
And try your luck at the North Shields Gut
With a catch of a hundred cran.

(plural crans)

(music) An embellishment played on the lowest note of a chanter of a bagpipe, consisting of a series of grace notes produced by rapid sequential lifting of the fingers of the lower hand.