BT Git 69b(49) :מייתי חוטא דזהוריתא דטויתי׳‏ : he brings the scarlet thread that she spun
See the entire entry for zḥōrī, zḥōrīṯā n.f. scarlet

BT Git 69b(49) :חוטא דזהוריתא דטויתי׳ דומה בת דומה‏ : a crimson thread which a woman of ill repute spun
See the entire entry for ṭwy vb. to spin yarn