(Aramaic) irregular plural feminine of 'enash -- women.
see HEBREW 'enash
H5389. nashin
[נְשִׁין] noun feminine plural wives (so Zinjirli (Cooke62.8) construct נְשִׁין ᵑ7 נשי,, Syriac , Hebrew נָשִׁים, Arabic on singular see Biblical Hebrew אִשָּׁה, and add Aramaic of Nineveh construct אשת (CISi.15), and Egyptian Aramaic אנתה S-CPap. D10+); — plural suffix נְשֵֹׁיהוֺן Daniel 6:25.