The phrase "came have" is a common example of a spelling error in English. The correct spelling is "could have," which is often misheard or pronounced as "came have." The IPA phonetic transcription for "could have" is [kʊd hæv], where the first syllable is pronounced with a short "u" sound followed by a hard "d" sound. The second syllable includes a short "a" sound followed by a soft "v" sound, making it important to listen carefully to distinguish between the two phrases.
The phrase "came have" is not a word with a specific etymology. It appears to be a combination of two separate words: "came" and "have".
1. "Came" is the past tense of the verb "come", which originated from Middle English and Old English. Its etymology can be traced back to the Germanic languages, specifically the Old Norse word "koma" and the Old High German word "queman".
2. "Have" is a verb that comes from Old English, and its etymology can be traced back to the Proto-Germanic word "habjaną". This word shares origins with other Germanic languages, such as the Old Norse word "hafa" and the German word "haben".
However, it's important to note that "came have" is not a standard English phrase or word.