(transitive) To make proportionate.

Is proportion a noun or verb?

proportion used as a noun:

a quantity of something that is part of the whole amount or number. harmonious relation of parts to each other or to the whole. proper or equal share. the relation of one part to another or to the whole with respect to magnitude, quantity, or degree.

What is the verb form of proportion?

proportioned; proportioning\ prə-​ˈpȯr-​sh(ə-​)niŋ \ Definition of proportion (Entry 2 of 2) transitive verb. 1 : to adjust (a part or thing) in size relative to other parts or things. 2 : to make the parts of harmonious or symmetrical.