suyos
/ˈsuʝos/ · B1 · pron
theirs
🫴 suyos sounds like sue-yos: sue them for what is theirs, not yours
From Latin suus, his/her/their own, the same root as suicide (killing oneself). Suyos is the plural masculine form: los libros son suyos, the books are theirs or yours (formal usted/ustedes).