TT #65 · Parshas Tazria · Aliyah 1 · Passuk 2
English: When a person has on the skin of the body a swelling, a rash, or a discoloration, and it develops into a scaly affection on the skin of the body, it shall be reported to Aaron the priest or to one of his sons, the priests.
Chabad.org — Chumash, English translation + Rashi for Vayikra 13:2
Torah Temimah cites Shevuos 6b for this stage in the definition of the skin-affliction appearances.
E-Daf — Shevuos 6b · Shas.org · Sefaria — source text and translation
English: “Sapachas” means something secondary or attached; the Gemara supports this meaning from the biblical phrase “Please attach me.”
Lexical derivation
Sapachas denotes a secondary or attached appearance, establishing that the term refers to an additional shade associated with the principal appearances.