nominal - term of address. sister-in-law (address only); endearment. From a woman to the sister of her husband, or the wife of her brother; from a man to the wife of his brother, or the sister of his wife
Ndaayu wila waan, dzuu'as? How are you, sister-in-law?
Ndeeyu di la waan, dzuuas? How are you, sister-in-law?