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definitions

per annum

[per an-uh m]
See more synonyms for per annum on Thesaurus.com
adverb
  1. by the year; yearly.

Origin of per annum

Borrowed into English from Latin around 1595–1605
Can be confusedper annum per capita per diem
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for per annum

regularly, annual, annually, yearlong, perennial
British Dictionary definitions for per annum

per annum

adverb
  1. every year or by the year
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for per annum

Latin, literally "by the year," from per (see per) + annum, accusative singular of annus "year" (see annual).

Online Etymology Dictionary, © 2010 Douglas Harper