נָאדִי, (נדי, v. נוּד) flying off. Sot. 45ᵇ רישא דנ׳ ונפיל it was the head (of the murdered man) that flew off and fell (at a distance from the body). Ned. 16ᵃ הוה נ׳ מן וכ׳ Rashi (ed. only נ׳) flew off from, i.e. rejected the reason given by A.