The spelling of the word "Thorbern" is phonetically represented as /ˈθɔrbərn/. In this word, "Thor" is pronounced as /θɔr/ with a voiced dental fricative sound, while "bern" is pronounced with a schwa sound /bərn/. The name Thorbern is of Old Norse origin and means "bear of Thor". It is made up of two distinct words, "Thor" - the Norse god of thunder and "bern" - meaning bear. Thus, the correct spelling of the word "Thorbern" reflects its etymology and pronunciation.