נְשַׁף II (cmp. שׁוּף I ch.) to slip, glide, move. Meg. 3ᵃ לִינְשׁוֹף מדוכתיה וכ׳ let him move (Rashi: skip) from his place four cubits.
Ittaf. - אִינַּשְׁתֵּף to be made to slip. B. Mets. 23ᵃ מִינַּשְׁתְּפָא it slips from its place (by people’s stepping against it).