thicking

Then we haue also for scowring our clothes earths and claies, as Walkers clay, 317 and the clay of Oborne little inferior to Sope in scowring and in thicking.

The Principal Navigations, Voyages, Traffiques and Discoveries of the English Nation 2003

Then we haue also for scowring our clothes earths and claies, as Walkers clay, [Footnote: Fuller's earth, which attains a thickness of 150 feet near Bath.] and the clay of Oborne little inferior to Sope in scowring and in thicking.

The Principal Navigations, Voyages, Traffiques and Discoveries of the English Nation — Volume 05 Central and Southern Europe Richard Hakluyt 1584

Here is a harmony of business, and every thing exact; the order is given plain and express; the clothier answers directly to every point; here can be no defect in the correspondence; the diligent clothier applies immediately to the work, sorts and dyes his wool, mixes his colours to the patterns, puts the wool to the spinners, sends his yarn to the weavers, has the pieces brought home, then has them to the thicking or fulling-mill, dresses them in his own workhouse, and sends them up punctually by the time; perhaps by the middle of the month.

The Complete English Tradesman (1839 ed.) Daniel Defoe 1696

And yet there is much to be said for setting goods out to the best advantage too; for in some goods, if they are not well dressed, well pressed, and packed, the goods are not really shown in a true light; many of our woollen manufactures, if brought to market rough and undressed, like a piece of cloth not carried to the fulling or thicking mill, it does not show itself to a just advantage, nay, it does not show what it really is; and therefore such works as may be proper for so far setting it forth to the eye may be necessary.

The Complete English Tradesman (1839 ed.) Daniel Defoe 1696