Correct. I was researching if Middle English Speakers had accusatives & possessives transformations for “a,” but I couldn't find any of the available papers alive if they had any transformations whatsoever. I am trying to see if we can make our own, or stick to David Lindsay’s ae/aer (1920), or Francis Augustus Brewster’s e/em/es (1841).

“Ou” doesn't fit right with modern “We/us/our”