Degrading sort

• Shame is his game
• Bully, often
• Bully, by nature
• One putting others down
• Put-down artist
• One who humiliates
• One who degrades
• Belittling one

Wiktionary Word definitions in Wiktionary
n. One who, or that which, abases. (Late 16 th century.) (R:SOED5: page=2)

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Abaser \A*bas"er\ ([.a]*b[=a]s"[~e]r), n. He who, or that which, abases.