The name "Dietbald" is spelled in the International Phonetic Alphabet as /ˈdaɪətbɔːld/. The first syllable is pronounced as "die" with a long "i" sound (IPA: /daɪ/), followed by "et" with a short "e" sound (IPA: /ɛt/). The second syllable is pronounced with a long "o" sound (IPA: /ɔː/), and the final "ld" is pronounced with an unvoiced "d" sound (IPA: /t/). So, the correct spelling of this name is "Dietbald".
The name Dietbald is derived from Old High German. It can be broken down into two elements: diet, which means people or nation, and bald, meaning bold or brave. Therefore, Dietbald can be understood to mean bold people or brave nation.