Definition of "milkness"

Afore lang days, I hope to see him here, / About his milkness and his cows to speer.

1778, Alexander Ross, Helenore: Or, The Fortunate Shepherdess, page 87

[…] said she had been in the service of one Jacob Pearson, of Titlington, about three or four years before or thereabouts to the best of her knowledge, and had charge of that gentleman's house and milkness.

1888, The Monthly Chronicle of North-country Lore and Legend, page 396