The phrase "wert lost thought" may appear confusing at first, but it can be easily deciphered with the help of IPA phonetic transcription. "Wert" is an archaic form of "were" and is pronounced /wərt/. "Lost" is pronounced as /lɒst/ and "thought" as /θɔːt/. Therefore, the phonetic spelling of the entire phrase is /wərt lɒst θɔːt/. It simply means that a thought or idea that was present before is now lost or forgotten. The phrase has its roots in Shakespearean English, and may not be commonly used in modern-day conversations.