Ratably

Part of speech: adverb

Definitions

1. In a manner that is proportional to something, such as a share or amount distributed fairly according to a fixed rate
2. Proportionally or in a way that maintains a fair mathematical relationship between parts or amounts
3. According to a proportion or ratio, distributing or calculating something fairly in relation to a measure or basis

Etymology: "Ratably" is simply "ratable" with the adverbial ending "-ly" attached, so it means in a ratable manner. "Ratable" itself comes from "rate" in the sense of a fixed charge or assessment, and "ratable" describes something that can be assessed, or proportioned according to a rate. The adverb therefore describes doing something in proportion to a fixed share, as when costs are divided among several parties according to their individual shares.

Synonyms: proportionally, proportionately, fairly