proximō adv.
proximus, very lately, shortly : proximo a. d. vi Kal. Octobr., just before .
proxĭmō, adv. [proximus], very lately , Cic. Att. 4, 17, 3. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
·- In the next month after the present; — often contracted to prox.; as, on the 3d proximo. ...
Webster's Dictionary of the English Language