suggillate
/sʌɡˈɪleɪt/Definitions
1. verb
to mark or stain with a reddish discoloration, especially of the skin; to discolor by oxidation, as in the case of iron
“The rusty iron suggillate the surrounding area.”
2. verb
to become discolored or stained, especially with a reddish tint
“The metal began to suggillate as it reacted with oxygen.”