Dbl-YO is the abbreviation for double yarn over. A dbl-YO is used to make an elongated stitch or to create an enlarged eyelet or yarn over. It differs from wrapping the yarn twice while knitting the stitch. The dbl-YO is usually used in eyelets or lace to create an enlarged yarn over, or to increase a stitch.
Dbl-YO or Double Yarn Over to Enlarge
This dbl-YO will create a larger YO or eyelet in the fabric. It is not used to create an extra stitch.
Wrap the yarn around the right needle two times. This is done like a single yarn over, between two existing stitches. On the next row, a wrong side row, knit into the first loop of the dbl-YO and drop the second loop off your left needle. The eyelet is enlarged by the extra yarn dropped from the right needle.
This is one of the few ways to open up an eyelet in a pattern. In Ashland it is used to create an enlarged eyelet which allows the flounces to move more freely from the garter band. Flounce Boot Toppers are worked similarly to Ashland.
Dbl-YO or Double Yarn Over to Increase
This dbl-YO will create an extra stitch when worked on the next row.
Wrap the yarn around the right needle two times. This is done like a single yarn over, between two existing stitches. On the next row, a wrong side row, knit into the first loop of the dbl-YO and purl into the second loop. The purl allows the second stitch to remain a separate stitch, increasing one stitch. It is possible to accomplish a complete second stitch in the this second loop by knitting into the back leg.
The openness of this method of increasing is often more suitable for lace or eyelet patterns. In Belon it is used to increase stitches within the pattern.