boste = forest (noun) (some things Google found for "boste": a very common term; a last name, notably St. John Boste (c.1544-1594) who is one of the Forty Martyrs of England and Wales, and Australian singer-songwriter Cyndi Boste; Boste waterlamps; user names; Boste fashion clothing for women of Australia; means "will you, you will" in Slovenian; places in Slovenia and Sweden)
Word derivation for "forest" :
Basque = baso, Finnish = metsä
Miresua = boste
Maybe this word seems fitting to me because of its similarity to the Spanish word for "forest" which is "bosque".