The spelling of the phrase "under prizes" can be explained using the International Phonetic Alphabet (IPA). "Under" is spelled /ˈʌndər/, with the stress on the first syllable and a schwa sound in the second syllable. "Prizes" is spelled /ˈpraɪzɪz/, with the stress on the first syllable and a long "i" sound in the second syllable. When combined, "under prizes" is pronounced /ˈʌndər ˈpraɪzɪz/, with a slight pause between the two words. This phrase could refer to awards given for subcategories within a larger competition.
There doesn't seem to be any specific word "under prizes" in the English language. However, if you meant to ask about the etymology of the word "understand", here is the information:
The word "understand" originated from the Old English word "understandan", which can be further broken down into two parts: "under" and "standan".
1. "Under" comes from the Proto-Germanic word "under", meaning "among" or "between". It is also related to the Latin word "infra", which means "below" or "beneath".
2. "Standan" comes from the Proto-Germanic word "standaną", meaning "to stand". It is also related to the Old Norse word "standa", the Old High German word "stantan", and the Old English word "standan", all with the same meaning.