The spelling of the word "am read" may seem confusing as it does not follow the typical patterns of English words. However, the pronunciation of the word can be better understood through the use of IPA phonetic transcriptions. The first part, "am" is pronounced as /æm/, which is a common contraction for "I am". The second part, "read", is pronounced as /rɛd/ which is the past tense of the verb "to read". Together, the word "am read" is pronounced as /æm rɛd/ and is used to convey the idea of having read something in the past.
The term "am read" does not have a specific etymology as it appears to be a combination of words from the English language. "Am" is the first person singular present tense of the verb "to be", often used in conjunction with pronouns like "I". On the other hand, "read" is the past tense and past participle of the verb "to read". Therefore, when combined, "am read" could simply mean "I am read" or "I have read".