The name "Krasylo" originates from the Ukrainian patronymic "Krasilenko," recorded in 1666. It is also associated with the modern Transcarpathian surname "Krasilynyts." The name has its counterpart in the Pokuttya toponym "Krasylivka." Additionally, there is a Serbian name "Krasylo" and the Serbian surname "Krasilović."The essence of the name "Krasylo" lies in its derivation from the same root "Kras-" as the names "Krasa," "Krasen," and "Krasnets." Its formation employed the former productive suffix "-ilo," which can also be seen in other names, such as "Dobrilo" and "Krayilo."