verb (used without object), pro·rat·ed, pro·rat·ing.
verb (used with object), pro·rat·ed, pro·rat·ing.
Origin of prorate
British Dictionary definitions for prorate
Word Origin for prorate
Word Origin and History for prorate
also pro-rate, "divide proportionally," 1860, American English, verb derived from Latin pro rata (parte) (see pro rata). Related: Prorated; prorating.
Culture definitions for prorate
To divide or distribute a sum of money proportionately. For example, if one owned an automobile for only three months, an insurance company would prorate the annual premium by charging only one-quarter of it.