From Longman Dictionary of Contemporary Englishapportionap‧por‧tion /əˈpɔːʃən $ -ɔːr-/ verb [transitive] formal SHAREto decide how something should be shared among various people It’s not easy to apportion blame (=say who deserves to be blamed) when a marriage breaks up.apportion among/between Court costs were equally apportioned between them. —apportionment noun [countable, uncountable]→ See Verb table
Examples from the Corpus
apportion• Should this be the case, the price may need to be apportioned.• The higher the eventual rank, the more likely was blame to be similarly apportioned.• Two remaining segments, along the Sumpul and Torola rivers, were apportioned between the two countries.• The rest of the delegates are apportioned by congressional districts, with the winner of each district getting three delegates.• The value of shared facilities or labour must be apportioned strictly in proportion to relative benefits received.• It was also open to the Revenue to apportion the tax among several beneficiaries according to any method they thought fit.apportion among/between• Organizational performance inevitably suffers, and when this decline is no longer deniable, blame is apportioned among a few unfortunate scapegoats.• Two remaining segments, along the Sumpul and Torola rivers, were apportioned between the two countries.From Longman Business Dictionaryapportionap‧por‧tion /əˈpɔːʃən-ɔːr-/ verb [transitive] formal to divide and share something between a number of people or organizationsapportion something to/amongst/betweena scheme which will apportion shares in state enterprises to the general publicFunding will be apportioned between the country’s local education authorities.→ See Verb tableOrigin apportion (1500-1600) French apportionner, from portionner “to portion” 