1)
What is "Azai"?
1.
Radak: It is like Az (then); the Yud is extra.
2)
What is the meaning of "Chayim Bela'unu"?
1.
Radak: This is like "v'Lo Yikach Mimecha Basar Mevushal Ki Im Chai" (Shmuel I, 2:15). Normally, people do not eat raw meat, rather, cooked. Amidst their great lust to swallow us, they would have swallowed us raw. It says also "Nivla'em ki'Sh'ol Chayim" (Mishlei 1:12).
2.
Malbim: This refers to eradicating the body.
3)
What is the meaning of "ba'Charos"?
1.
Rashi: It is when they were angry. This is like "ba'Asos" (Yechezkel 23:21).