Meanings (ES + gloss)
bruñir
To make (something, such as a surface) bright, shiny, and smooth by, or (by extension) as if by, rubbing; to polish, to shine.
In pottery, a stone is sometimes used to burnish a pot before firing, giving it a smooth, shiny look.
Lyke as the larke, vpon the somers day, / Whan Titan radiant burnisshith his bemis bryght, […]