To begrime; soil with mud; daub; smear.
To knead dough; stir dough previously kneaded to a proper consistency before baking.
To meddle; interfere.
To work persistently or laboriously; be occupied in working (e.g. in the earth, rake among dirt, etc.).
To become soft; become moist, as damp earth.
To injure (anything) by rough handling; handle roughly.
To compromise, damage, soil, or sully.
To lose its lustre or attraction; to become dull.
To oxidize or discolor due to oxidation.
Oxidation or discoloration, especially of a decorative metal exposed to air.