"Dorseigh" is a non-standard spelling of the word "Dorset", a county located in South West England. The pronunciation of "Dorseigh" can be transcribed in IPA as /dɔːsɛi/. The initial "d" is pronounced as /d/, while the "or" is pronounced as /ɔː/. The following "s" is pronounced as /s/ and the final "eigh" can also be pronounced as /eɪ/. However, it's important to note that this spelling is not recognized or commonly used, and the correct spelling is always "Dorset".