어원: In post-classical Latin (4th or 5th century) in reference to a sum of money due each year. Already in the 3rd century in the sense of "through the year". From the preposition per (“through; during”) + annum, the accusative singular of annus (“year”).

뜻

1. Used other than with a figurative or idiomatic meaning: see per,‎ annum; throughout the year
2. (proscribed) per annum; per year