"wert with" is an archaic phrase meaning "were with." The spelling of "wert" is a unique case of historical inflection in the English language. It is pronounced /wərt/ in the International Phonetic Alphabet (IPA) and was used in Early Modern English to indicate the second person singular past tense of the verb "to be" in relation to "thou." This distinction is no longer in use, with "were" replacing "wert" in contemporary English usage.
The phrase "wert with" is derived from Middle English and Old English.
In Old English, "were" was used as the second person singular form of the verb "to be" in the past tense. It would typically be combined with prepositions to form phrases indicating a state or condition. "With" in this context means "in a state of" or "in the condition of".
Over time, the form "wert" evolved into "were" in Middle English, which eventually became the modern form of "were" used in the past tense conjugation of "to be". As a result, "wert with" gradually transformed into "were with" in the development of the English language.