1)
What is the meaning of "Yachil"?
1.
Rashi: It worries.
2.
Radak: This is like "Chil ka'Yoledah" (Yirmeyah 6:24). I fear lest they kill me, like Achitofel said "I will kill the king alone" (Shmuel II, 17:2).
3.
Malbim: It is the fear at the time that the sudden tidings came, lest they kill me.