Piltsenian
Piltsenian refers to a surname of Armenian origin. Like many Armenian surnames, it likely derives from a combination of a given name or a descriptive term and a patronymic suffix. The suffix "-ian" or "-yan" is a common Armenian patronymic, signifying "son of" or "descendant of." Therefore, "Piltsenian" would broadly indicate descent from someone named Pilts or a similar-sounding given name.
The exact etymology of the root "Pilt" is not definitively established and can vary depending on the