Olga
来自Big Physics
wiktionary
Borrowed in the 19th century from Russian О́льга(Ólʹga), a saints' name borne by Russian royalty, a medieval form of Helga, Old Norse heilagr(“holy, prosperous”). Doublet of Helga.
etymonline
Olga
fem. proper name, Russian, probably from Norse Helga, literally "holy," from Proto-Germanic *hailaga (from PIE *kailo-; see health). The masc. form is Oleg.
