Sailyarn

It is chiefly, for the present, confined to the manufacture of sail-yarns, and of plain goods; but it is yet in its infancy, and will, perhaps, soon extend its limits, as well as its variety of manufactures.

Source: wiktionary

In 1636 the Bommel arrived in Batavia with a cargo described as 1058 carra or 148 lasts of white rice, 210 slaves both male and female, 12 chests and 4 baskets of indigo, 1 maund or basket of wax and 1 basket of sailyarn, the whole valued at 11,933 florins.

Source: wiktionary

Flax and hemp: ropes of all kinds, sailyarn, and sailcoth.

Source: wiktionary