BT Naz 39a(15) :מהאי אינבא׳ הי׳ דקאים בעיקב׳ דבינת׳‏ : from the live louse's egg that is located at the root of the hair
See the entire entry for ˀnbˀ n.m. egg of lice (??)

BT Naz 39a(15) :מהאי {אי}נבא׳ הי׳ דקאים בעיקב׳ דבינת׳‏ : what is n'? that which is found at the root of a hair follicle
See the entire entry for nāḇ, nāḇā n.m. nit