Awards another star to, perhaps

• Downgrades, e.g.
• Alters an assessment
• Gives another star to, perhaps
• Downgrades, e.g
• Changes a grade
• Changes at Standard & Poor's, say
• Changes at Standard & Poor's, say
• Considers bond values again

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