Sentence:  This [Algonquian] language [family] is spoken by all the Indians throughout New England. Every tribe, as that of Stockbridge, that of Farmington, that of New London, &c. has a different dialect [i.e. language], but the language [family] is <WSD>radically</WSD> the same. 
Meaning of the word marked with <WSD> tags:  At the root.