It is the maca, a tuberous root grown like the potatoe, and like it used as an article of food.
Instead of naca and maca, are used nacag and macag respectively, when the signification of the root is often done.
In the active voice the present and past tenses are formed with the particle naca, and the future and imperative with maca.
In many of the Puna districts the maca constitutes the principal sustenance of the inhabitants.
Strong men had fought for generations before Concobar reigned at Emain of maca.