Purl stitch

бисерный стежок (для обмётывания петель)

Англо-русский политехнический словарь

Purl stitch

noun Etymology: 1purl a knitting stitch usually made with the yarn at the front of the work by inserting the right needle into the front of a loop on the left needle from the right, catching the yarn with the right needle, and bringing it through to form a new loop — compare knit stitch

Merriam-Webster's Collegiate Dictionary