The spelling of the surname "Grauberger" can be a bit tricky to decipher using only English orthography. The first syllable, "Gr," sounds like the beginning of the word "green" and is followed by the vowel sound "ow," as in the word "cow." The second syllable, "ber," rhymes with the English word "fur." To write this out using IPA transcription: /ˈɡraʊ.bər.ɡər/. Remembering this pronunciation can make it easier to correctly spell and pronounce the name in the future.
The word "Grauberger" does not have a widely known or established etymology as it appears to be a relatively uncommon surname. It is possible that "Grauberger" is of German origin, given that "Gräuberger" sounds similar in German. However, without further information or historical records, it is challenging to determine the exact etymology of this particular surname.