auxiliary

[awg-zil-yuh-ree, -zil-uh-]

adjective

noun, plural aux·il·ia·ries.


Origin of auxiliary

1595–1605; < Latin auxiliārius assisting, aiding, helping, equivalent to auxili(um) aid, help (aux(us) increased, augmented (past participle of augēre: aug- increase + -sus, variant of -tus past participle suffix) + -ilium noun suffix) + -ārius -ary

Synonyms for auxiliary

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British Dictionary definitions for auxiliary

auxiliary

adjective

secondary or supplementary
supporting
nautical (of a sailing vessel) having an enginean auxiliary sloop

noun plural -ries

a person or thing that supports or supplements; subordinate or assistant
nautical
  1. a sailing vessel with an engine
  2. the engine of such a vessel
navy a vessel such as a tug, hospital ship, etc, not used for combat

Word Origin for auxiliary

C17: from Latin auxiliārius bringing aid, from auxilium help, from augēre to increase, enlarge, strengthen
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 auxiliary
adj.

c.1600, from Latin auxiliaris "helpful," from auxilium "aid, help, support," related to auctus, past participle of augere "to increase" (see augment).

n.

"foreign troops in service of a nation at war," c.1600, from auxiliary (adj.). Related: Auxiliaries.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for auxiliary

auxiliary

[ôg-zĭlyə-rē, -zĭlə-rē]

adj.

Functioning in an augmenting capacity; supplementary.
Functioning as a subordinate; secondary.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.