IPA: /əˈpɔːrʃən/
KK: /əˈpɔrʃən/
To divide something into parts and give those parts to different people or groups.
The committee decided to apportion the funds equally among all the projects.
Past: apportioned
Past Participle: apportioned
Apportion is formed from "a-" (meaning to) and "portio" (from Latin, meaning portion or share). The word means to divide or allocate something into portions or shares.
Think of 'portion' as a share of something, and remember that 'apportion' means to divide something into shares.