Daniel 1:6

Children of Judah] Daniel and his friends belonged to the royal tribe. Daniel] The name means 'God is my judge.' Hananiah] 'Jehovah is gracious.' Mishael] 'Who is what God is?' Azariah] 'Jehovah has helped.' All these names are found elsewhere in OT.: see especially Nehemiah 3:8; Nehemiah 3:23; Nehemiah 3:30; Nehemiah 8:4.

7. The changes of name have a parallel in the case of Joseph (Genesis 41:45). The new names had no reference to the God of Israel, and perhaps contained the names of Babylonian deities.

Belteshazzar]Balatsu-utzur, 'Protect his life.' Not to be confounded with Belshazzar.

Shadrach] Perhaps Shudur-Aku, 'the command of Aku,' the Moon-god. Meshach] of uncertain meaning. One suggestion is Mi-sha-Aku, 'Who is what Aku is?' Abed-nego] Probably a corruption of Ahed-Nebo,' Servant of Nebo.'