Fantastic selection! Some really interesting names in there. Peewee &
Edward Cullen made me laugh.
Estíbaliz is Basque. There's a village with a 12th-century church dedicated to the BVM:
http://www.spain.info/en/conoce/monumentos/alava/iglesia_de_santa_maria_de_estibaliz.htmland a well-known singer who's been around since the 70s:
http://en.wikipedia.org/wiki/Est%C3%ADbaliz_UrangaMost common meaning given (in English and Spanish anyway) seems to be 'sweet like honey'. No idea if this is accurate.
Amancaya: apparently "The word 'amancaya' is the native Indian name of a flower of the Andes' - spotted on a site selling Argentinian wine, sounds plausible.