actuarial

Etymology

It is formed from English actuary + -al,^[2][3][4] or, as the revised Oxford English Dictionary puts it, directly from the Latin noun and the English suffix.^[5] That noun is from Latin āctuārius (“shorthand writer, keeper of records or accounts”),^[5][2][4] from āctus (“a doing; public business”) and -ārius,^[5][2] from agō (“to drive, do”),^[2][4] from Proto-Indo-European *ag- (“to drive, draw out, move”).^[2]

Earliest recorded meaning

Of or relating to actuaries or their profession: 1850, in the Manchester Examiner and Times.^[5][6] Etymonline gives 1853.^[2]

Semantic evolution

The adjective arose soon after actuary took on its modern sense.^[5][2] The noun meant a registrar or clerk of a court from 1570, the managing secretary or accountant of a society or company from 1769, and a person who calculates insurance risks and premiums from statistics of mortality and accidents from 1772, now its usual sense.^[5] Etymonline dates that sense to 1849.^[2] The adjective has always referred to this statistical work,^[5][3] and Merriam-Webster also uses it of things worked out by actuaries, especially calculations of life expectancy.^[6] The adverb actuarially followed in the late 19th century.^[3]

Timeline

• 1850 – of or relating to actuaries.^[5][6] Etymonline gives 1853.^[2]

Meanings

Adjective

1. Of or relating to actuaries or their profession: an actuarial firm.^[6][5][3]
2. Worked out by actuaries; based on statistical calculation of risk, especially of life expectancy: actuarial tables.^[6]

Word family

• actuarially

Related words

• actuary
• act
• agent

Usage notes

The first edition of the Oxford English Dictionary (1884) gave the pronunciation with /tj/,^[5] and British English still has /ˌaktjʊˈɛːriəl/ beside /ˌaktʃʊˈɛːriəl/.^[5][3]

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
3. ^ a b c d e Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
4. ^ a b c Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
5. ^ a b c d e f g h i j k Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
6. ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster