The spelling of the word "Bomgardner" can be explained using the International Phonetic Alphabet (IPA). The initial "B" is pronounced as the voiced bilabial plosive /b/. The "o" is pronounced as the open-mid back rounded vowel /ɔ/. The "m" is pronounced as the bilabial nasal sound /m/. The "g" is pronounced as the voiced velar plosive /ɡ/. The "a" is pronounced as the near-open front unrounded vowel /æ/. The "rd" is pronounced as the voiced postalveolar fricative /ʒ/, followed by the voiced alveolar approximant /ɹ/. The final "ner" is pronounced as the syllabic nasal /n/, followed by the schwa sound /ə/.
The name "Bomgardner" does not have a well-known etymology or origin. It is a relatively rare surname, and there is limited information available about its specific origins. The most likely explanation is that it is a combination of the German elements "bom" and "gardner". "Bom" could be derived from "baum", meaning "tree" in German, while "gardner" suggests a profession related to gardening or tending to plants. However, without more concrete information, it is difficult to determine the exact etymology of the name "Bomgardner".