The spelling of the name "Schwichtenberg" can be tricky to figure out phonetically. In IPA phonetic transcription, it's spelled as /ʃvɪktənbɜːrɡ/. The "ch" sound at the beginning is pronounced like the "sh" in "shed", and the "w" is pronounced like a "v". The "ie" combination makes the sound "ih", while the "e" at the end is pronounced like a short "uh". The "berg" portion of the name is pronounced like "bur-g". So, Schwichtenberg is pronounced as "shvikt-uhnbuhr-g".
The word "schwichtenber" does not have a commonly known etymology. It is possible that the word is a surname or a place name derived from a German origin. However, without more specific context or information, it is difficult to determine the exact etymology of the word.