ⲛϣⲓⲧ S (or ? ϣⲓⲧ) nn as pl, meaning unknown: Mor 51 35 (parable) ⲁⲛⲕⲱ ⲛⲉⲛϣ. ⲉⲩⲧⲟϭⲥ ⲛⲟⲩⲱϭ ⲙⲡⲉⲛϫⲉⲕϫⲱⲕⲟⲩ (interpret) shelves full of books, yet we read not.