The phrase "wert in wind" is an archaic expression that means "lost in the wind". The spelling of "wert in wind" can be explained using the International Phonetic Alphabet (IPA) transcription. "Wert" is pronounced /wɜrt/ and is a variant of the archaic verb "were", used in the second person singular. "In" is pronounced /ɪn/ and "wind" is pronounced /wɪnd/. The "w" at the beginning of "wind" is silent, which is a common feature of English words of Old Norse origin.