Mokosh is a protector of women and goddess associated with the sacred feminine in Slavic pantheon. She is a goddess of water, home, earth, and female occupations such as spinning, weaving and fate.
Slavic women would throw hemp, called "mokrica" (mokar = wet), into the water. The hemp was a sacrifice offered to Mokos. Another of Mokos's roles was to protect the sheep and their fleece; the Slavs made offerings to her for that reason, too. A pair of scissors, basil and a skein of wool used to be put before the feet of Mokos's statue, with the aim of insuring protection for the lambs that hadn't been shorn yet. Rainfall is sometimes called Mokosh's milk.
Another action related to Mokos was casting spells. The women that practiced sorcery in the 16th century Russia were called mokose. The festival dedicated to this goddess was celebrated some time between 25th October and 1st November, depending on which date happened to be Friday.
In Christian times she became conflagrated with the Virgin Mary and Saint Paraskeva(St Petka). Saint Paraskeva's Day is celebrated on 27th October, and that holiday is fixed to that date, although it probably shouldn't be because Friday is dedicated to female deities Freya (Friday) and Venus (venerdì).