This abbreviation is from “Socks a la Carte 2”.
Used in the heel.
3 days I worked on it and didn’t figure it out,
First there is an error in the printed pattern.
Second, the wording is very odd. 2 professional ladies at my LYS, Mystic River, Mystic, CT. spend almost 3 hours trying to help me and get it right.
THEY DID and now I can finish the socks.
It was a toughy to be sure.