'pro-educational' is a modern compound formed from the prefix 'pro-' (from Latin 'pro', meaning 'for' or 'in favor of') and 'educational' (from 'education').

'educational' derives from the noun 'education', from Latin 'educatio' (from past participle stem of 'educare'/'educere'), where Latin 'educere' is built from 'e-'/'ex-' (out) + 'ducere' (to lead); the English word 'education' passed into Middle English via Old French and Latin.

Initially Latin roots carried the sense of 'leading out' or 'bringing up' (forming/raising); over time the cluster evolved into the modern sense of 'instruction, schooling, and learning', so 'pro-educational' now means 'in favor of education' or 'serving educational purposes'.