"Mowdiewart" is a rare dialectal Scottish word that means "earthworm". Its spelling can be attributed to the phonetic transcription of the Scottish dialect in which it originated. It is pronounced /ˈmoʊdiwɑrt/ according to the International Phonetic Alphabet (IPA). The "ow" represents the diphthong /oʊ/, while the "ie" is pronounced as a single vowel sound /i/. The final "e" is silent, and the "w" in the middle of the word represents a slight glottal stop.
The word "mowdiewart" does not have a well-documented etymology as it is quite obscure and not commonly used in modern English. It is a Scots word that refers to a mole or a molehill. While the etymology of "mowdiewart" is uncertain, it is believed to be a combination of two Scottish dialect words: "mowdie", meaning mole, and "wart", meaning a small hill.