c.1402-1440, Registrum Episcopatus Aberdonensis (I, 247) record, quoted in, in Thomas Mair, Records of the parish of Ellon (1876), page 14:
[…] ye moss and ye mersk to Bischop Byrness, and ye teleland to Ardgrane, […]
English
1924, Percy Fry Kendall, Herbert E. Wroot, Geology of Yorkshire: An Illustration of the Evolution of Northern England, page 675:
[…] the great royal Forest of Galtres, which stretched far to the north and north-east of the City, must have embraced many "mersks" or marshes, of which some are historic and some still to be traced.
1904, Thomas Parsons Cooper, York: the Story of Its Walls, Bars, and Castles,
[page 33:] William de Vescy appears to have had in his posession a plot that extended from "le Stainogh" towards the Foss, which was bounded on one side by the Mersks or mashes—boggy land, now appropriated by the Hungate district—and on the other side by the street of Fossgate.
[page 47:] […] the Royal Fishpond of Fosse; its Norman origin; Gardens and Water Mills devastated; early Custodians of the Fishpond; its Bounds; its Site obliterated; the Mersks, void Plots near the Pool; […]
[page 72:] The present street of Picadilly, the lower parts of Walmgate, the district of Hungate, which was called The Mersks, a name derived doubtless from the Anglo-Saxon word mersc, a marsh, a tract of land, usually, or occasionally, covered with water;
capitalized and with 'the', like or as the proper noun name of a specific place
1741, Arthur Collins, The English Baronetage, page 50:
and specifying therein a bovat of land, in Mersk, with the appurtenances, and another bovat, in Barton,
1904, Calendar of the Patent Rolls Preserved in the Public Record ... (Great Britain Public Record Office), page 286, summarizing a record from 1323:
Presentation of Richard de Enderby to the church of Sutton 'in the Mersk' in the diocese of Lincoln, in the king's gift by reason of the temporalities of that see being in his hands.
English or Scots?
1882, Thomas Mair, John o' Arnha's Latter-day Exploits, page 79:
There sall follow by mersk and mere […]
1607, Inverurie B. Ct., 41:
Certain grewes viz. making of ȝerd middingis casting of mersk ȝeird forder nor thai aucht to haiff downe
1513, Wigtown B. Ct., 28 a:
the borow mersk
1521, Wigtown B. Ct., 122 a:
In the achtand part of the borow mersk wyth ane half akyr lyand besyd [etc.]
