In terms of spelling, "more cartable" is composed of two separate words: "more" and "cartable". The phonetic transcription for "more" would be /mɔːr/, indicating that it is pronounced with the "or" sound commonly found in words like "for" or "bore". "Cartable" is pronounced as /kɑːtəbl/, with the emphasis on the second syllable and a "t" sound in the middle. Together, "more cartable" could be pronounced as /mɔːr kɑːtəbl/.
The phrase more cartable does not have a clear etymology as it appears to be a combination of the words more and cartable. However, cartable itself can be traced back to French, where it means suitable for carrying or portable. It is derived from the word carte meaning card or map, and the suffix -able indicating capable of or able to.