1)
What is the meaning of "Sachtam"?
1.
Rashi: [They stayed] in their place 1 [and did not besiege the city].
1
Radak: This is like "Shevu Ish Tachtav" (Shemos 16:29). Malbim
2)
What is the meaning of "Chayosam"?
1.
Rashi: It is the healing of the wound (of circumcision).
