The word "wert one case" is an archaic term used in legal documents, meaning "were it one case." Its spelling can be explained using IPA phonetic transcription as /wɜːrt wʌn keɪs/. The first syllable "wert" is pronounced as "wərt" with a schwa sound, followed by the stressed syllable "one" pronounced as "wʌn." The final syllable "case" is pronounced as "keɪs" with a long vowel sound. The spelling "wert one case" may seem confusing, but it is a reflection of the shifting pronunciation and spelling conventions in English over time.