The spelling of the phrase "over over" is quite straightforward when using phonetic transcriptions. In IPA, "over" is spelled /ˈoʊ.vɚ/, with the stressed syllable being "oʊ" which represents the diphthong "oh". When "over" is repeated, it is pronounced the same way, which means the phonetic transcription of "over over" would be /ˈoʊ.vɚ ˈoʊ.vɚ/. It is important to note that the spelling of this phrase does not change, even though it may appear redundant.
"Over" is a preposition and adverb with Germanic roots. It can be traced back to the Old English word "ofer" or "ofer", which has the same meaning. This word has cognates in other Germanic languages, such as German "über" and Dutch "over".
The repetition of the word "over" as in "over over" is not a standard linguistic construction, and it doesn't have a specific etymology itself. However, it can be understood as an emphasis or repetition for various purposes, such as drawing attention, conveying urgency, or indicating redundancy.