begrime, darken, cloud, shade
The verb for black is blacken. As in "to blacken something".
Blacken My Thumb was created on 2004-08-02.
Blacken the Angel was created on 1998-08-04.
On standardized tests, students often must use a number 2 pencil to blacken the corresponding circle for their answers.
Although it is a separate legal term, a synonym is "libelous". Also, "derogatory", "disparaging", and "invidious".
to blacken
Tanned
The verb of black is blacken, as in "to blacken".Other verbs are blackens, blackening and blackened, depending on the tense you need.Some example sentences for you are:"We need to blacken the uniforms a bit"."She blackens the paint a little more"."They are blackening the submarine to make it harder to a spot"."The Royal Commandos blackened their faces so they could move undetected in the dark".
The root word in "blacken" is "black," which serves as the base of the word and gives it its meaning related to becoming black or darker in color.
rock salt
Xylene will.
Black is generally used as a noun. But it can be used as a verb if it is used as an action, such as "to black something". Though a better verb would be "blacken" as in "to blacken something".