noun, masculine/dekaˈkoɾdjo/plural: decacordios
decachord (musical instrument with ten strings)
Borrowed from Latin decachordum, from Ancient Greek δεκάχορδος (dekákhordos, “ten-stringed”), from δέκα (déka, “ten”) + χορδή (khordḗ, “guts, string of a musical instrument”).