I can’t say for sure why the word purl is spelled the way it is, I just know that it is the twin to the knit stitch. Sometimes I call it the ‘evil twin’ but only because it is a little more difficult to maneuver for beginners. Purl is shorter than evil twin, that is good when writing out patterns, less ink…
Many sites, including the Oxford Dictionary, say that it is from Middle 17th century of unknown origins and has two short definitions:
1) A knitting stitch made by putting the needle through the front of the stitch from right to left.
2) a cord of twisted gold or silver wire used for bordering or edging something.
Dictionary.com says that the word pearl is‘
So, if you forget which way to insert the needle for the knit or the purl stitch, think of it this way:
When you have your work facing you with the working yarn on the right, you need to enter the next loop to be worked and point towards yourself or towards your ‘pearls’ with the working needle (right hand).
Vs the knit stitch:
The knit stitch means you point away from your self.
Doesn’t everyone wear a strand of pearls when knitting?