puratza = garden (noun) (some things Google found for "puratza": a very rare term; user name; in Sardinian may mean an tool for pruning; similar Puratz is a rare last name)
Word derivation for "garden" :
Basque = baratze (and lorategi), Finnish = puutarha
Miresua = puratza
In Basque I found two words that can mean garden. The word baratze means vegetable garden and lorategi means flower garden. The Finnish word puutarha seems to a be compound word of tree + enclosure.