Protesides
Protesides is a term that can refer to a few different things, primarily in the context of ancient Greek literature and history. One notable use is as a patronymic, indicating descent from a figure named Protesilaus. Protesilaus was a legendary Achaean hero in Greek mythology, famous for being the first to leap ashore at the siege of Troy and consequently the first to die, fulfilling an oracle's prophecy. Therefore, any individual referred to as a protesides would be considered a descendant of this hero.
Another, less common, usage of protesides might appear in specific scholarly discussions related to textual criticism