From my collection of births in parts of Slovakia, somewhat south of Galicia, Slawa, written in Hebrew letters as either, סלאווא or סלאווע appears to have been a given "holy name" for someone with the following secular names: Szeren, Sali, Charlotte (Lotti). It was not a common name, occurring only 7 times out of my almost 6000 list of births.
Hope this helps a bit,
Beverly Hills, CA
Researching: GOLDMAN, STEINER, LANGER, GLUECKSMAN, STOTTER in various parts of Galicia, Poland
(Nowy Targ, Nowy Sanz, Wachsmund, Dembno, Lapuszna, Krakow, Ochotnica) who migrated into Kezmarok or
nearby towns in northern Slovakia and Czech Republic (i.e., those who lived/had businesses in Moravska Ostrava);
GOLDSTEIN in Sena or Szina, Szkaros and Kosice, Slovakia; Tolcsva and Tokaj, Hungary.