Isaiah 19:9 Commentary: Rashi & Ibn Ezra

Those who work at flax Who sow flax by the river.

שריקות Red.¹³A. V., Fire. Some compare it with משרק comb, but more correctly it is derived from שורק vine branch (5:2), and it signifies, having the colour of the vine branch, red; comp. שרקים red (Zac. 1:8).

to be combed Flax that they comb and from which they weave fish nets, which are made with many holes.