köken: From Ancient Greek Σάουος (Sáouos), according to Pokorny, of Illyrian origin (*Souos), from Proto-Indo-European *sew- (“sap, juice”), see also sugo (“I suck”), Ancient Greek ὕω (húō, “I rain”).
Borrowed from Ukrainian Сава (Sava), from Ancient Greek Σάββας (Sábbas). Alternatively, from Belarusian сава (sava, “owl”), in which case a doublet of Sowa.