Does a cattle job

• Makes safer, as a herd
• Renders harmless, as a bull
• Renders harmless, in a way
• Does a cattleman's chore
• Makes less dangerous, as a bull
• Renders harmless, as a steer
• Removes antlers
• Makes a bull less dangerous

Wiktionary Word definitions in Wiktionary
vb. (en-third-person singular of: dehorn )