Burnish
Verb
1. To grow fat.
“The expression, “You burnish nicely” meaning, “You look well.” is frequently used in East Sussex, and is meant as a compliment.”
From A Dictionary of the Sussex Dialect and Collection of Provincialisms in Use in the County of Sussex by W.D. Parish.
I thought this was interesting… Reminds me of the modern term: phat.
Amy Quinton 