The correct spelling of the phrase "am convinced" is /æm kənˈvɪnst/. The first word, "am", is spelled with the letter "a" and the letter "m", and is pronounced as /æm/. The second word, "convinced", is spelled with the letters "c-o-n-v-i-n-c-e-d" and is pronounced with stress on the second syllable, /kənˈvɪnst/. The IPA phonetic transcription accurately represents the sounds of each letter and helps us to understand the pronunciation of the phrase.
The etymology of the word "convinced" can be traced back to the Latin word "convincere", which is a combination of "con-" meaning "completely" or "thoroughly", and "vincere" meaning "to conquer" or "to overcome". Thus, "convincere" originally meant "to overcome with argument or evidence" and eventually evolved into "convinced" in English. The prefix "am" in "am convinced" is the first person singular present indicative form of the verb "to be" (am), indicating the state of being convinced.