Sentence:  In some parts of the Indies they use a kind of bread called cassava, which is made from a certain root called <WSD>yucca</WSD>. The <WSD>yucca</WSD> root is large and thick. It is cut into small pieces and grated and squeezed in a sort of press, and what is left resembles a thin cake that is very long and broad, almost like a shield. Dried, this is the bread that they eat; it has no taste and is perfectly insipid but is wholesome and nourishing. 
Meaning of the word marked with <WSD> tags:  The yuca (cassava).