What does this mean " Ah tried not to feel de breese off her face, but it got so cold in dere dat ah was freezin' to death under the kivvers."

This quote is Nanny's. Mistis has come to see Nanny's baby on a cold wintery night, and she brought the cold inside with her. Nanny was shielding the baby girl from the cold, as she was tucked up inside a blanket.