Meso is a word of Hellenic origin and it means middle, in between, center like in Meso lithic Age - the middle of all lithic ages, Meso potamian - in between two rivers Tigris and Euphrates, Μεσόγειος Θάλασσα - Medi terranean Sea = Sea in the Middle of land.
meso as in mesosphere or mesothelioma.
The combination of a Latin prefix and of a Latin root means 'to move back'. The prefix re- means 'back'. The root ced-, from which the infinitive 'cedere' is derived, means 'to go'.
Around in Latin can be undique, circum or circa.
The Latin root ac- means 'sharp'. A Latin derivative is the infinitive 'acuere', which means 'to sharpen'. Its past participle is 'acutus', which means 'sharp'. An English derivative is adjective is 'acute'.The root 'acu-'.
The Latin word for light is "lucet." The root would perhaps begin with "luc--".
The root that means 'severe' is from the ancient, classical Greek and Latin languages. That root is auster- in Latin, and austeros in Greek. From that root derive the Latin adjective 'austerus', which means 'severe'; and the Latin noun 'austeritas', which means 'severeness, severity'.
The Latin root of "audible" is "audire," which means "to hear."
The Latin root "quinque" means five.
The Latin root word for radiation is 'radiātus', which means light or shine.
scope is the latin root that means 'to see'
The Latin root "nimbus" means "rainstorm".
I think the closest Latin root would be processus, which means going forward.