One of the mysteries of the English language finally explained.
The fact or concept of being additional; especially any principle or policy that involves pursuing economic or financial practice according to this concept; specifically (in the European Union) the requirement that central funding should supplement, and not replace, national expenditure on a project.
1950s; earliest use found in The American Economic Review. From additional + -ity.
In this article we explore how to impress employers with a spot-on CV.