turns into this...
The dågo, or yam, is harvested (uprooted; ma hålle') in the first week of December after being planted in March. So, in December, the dågo is plentiful and is made into fritters or boñuelos.
I wanted to find out more about the root itself, so I interviewed this gentleman who grows dågo at his ranch in Mogfog, Dededo.
Listen to some pretty classy Chamorro about dågo, and other things.