Where does “bozketa” come from?

bozketa (Basque) comes from Basque boz, from Spanish voz, from Old Spanish voz, from Latin vōx, from Proto-Italic wōks, from Proto-Indo-European wṓkʷs, from Proto-Indo-European wekʷ- — to speak, to sound out.

bozketa (Basque): ballot, voting