Alzate

From Basque Alzate, a surname. The meaning of Alzate is not clear. It is thought that Alzate is composed of haltz (“alder tree”) + ate (“door, entrance, pass, gorge”). Some think that the second part, ate, could be a variation of eta (“and, a plurality”). So the meaning of the surname seems to be: [the house] at the entrance of the alder tree place, or [the house] in the gorge of the alder trees, or [the house] in the alder tree place.