actuary

[ak-choo-er-ee]
noun, plural ac·tu·ar·ies.
  1. Insurance. a person who computes premium rates, dividends, risks, etc., according to probabilities based on statistical records.
  2. (formerly) a registrar or clerk.

Origin of actuary

1545–55; < Latin āctuārius shorthand writer, clerk, variant (with u of the action noun āctus act) of āctārius (āct(a) deeds, documents + -ārius -ary)
Related formsac·tu·ar·i·al [ak-choo-air-ee-uh l] /ˌæk tʃuˈɛər i əl/, ac·tu·ar·i·an, adjectiveac·tu·ar·i·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for actuarial

actuary

noun plural -aries
  1. a person qualified to calculate commercial risks and probabilities involving uncertain future events, esp in such contexts as life assurance
Derived Formsactuarial (ˌæktʃʊˈɛərɪəl), adjective

Word Origin for actuary

C16: (meaning: registrar): from Latin āctuārius one who keeps accounts, from actum public business, and acta documents, deeds. See act, -ary
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 actuarial
adj.

1853, from actuary + -al (1). Related: Actuarially.

actuary

n.

1550s, "registrar, clerk," from Latin actuarius "copyist, account-keeper," from actus "public business" (see act (n.)). Modern insurance office meaning first recorded 1849.

Online Etymology Dictionary, © 2010 Douglas Harper

actuarial in Culture

actuary

[(ak-chooh-er-ee)]

A mathematician who uses statistics to calculate insurance premiums.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.