A small rattle-snake.

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1842.  This animal is commonly known under the name Massasaugua, a word of Inidan origin.—Holbrook, ‘North American Herpetology,’ iii. 32. (N.E.D.)

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1850.  Bless your lawful sakes, you do n’t call this woods, do you? There ain’t no bears, nor many wolves nor mas-san-gers [sic] round here.—Knick. Mag., xxxvi. 75 (July). (Italics in the original.)

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