tannest
/ˈtænɛst/Definitions
1. adjective
having the strongest or most intense effect of tanning or tannins, often referring to leather.
“This tannest leather is perfect for making a vintage handbag.”
2. verb
to make something, especially leather, darker and more supple by exposing it to tannins or other chemicals.
“The skilled craftsman tannest the leather to create a beautiful, aged look.”