Mattock :: Mattock (n.) An implement for digging and grubbing. The head has two long steel blades, one like an adz and the other like a narrow ax or the point of a pickax..
Mattowacca :: Mattowacca (n.) An American clupeoid fish (Clupea mediocris), similar to the shad in habits and appearance, but smaller and less esteemed for food; -- called also hickory shad, tailor shad, fall herring, and shad herring..