AUXILIARY
auxiliary, subsidiary, supplemental, supplementary
(adjective) functioning in a supporting capacity; “the main library and its auxiliary branches”
accessory, adjunct, ancillary, adjuvant, appurtenant, auxiliary
(adjective) furnishing added support; “an ancillary pump”; “an adjuvant discipline to forms of mysticism”; “The mind and emotions are auxiliary to each other”
aide, auxiliary
(noun) someone who acts as assistant
Source: WordNet® 3.1
Etymology
Adjective
auxiliary (not comparable)
Helping; giving assistance or support.
Synonyms: ancillary, accessory
Supplementary or subsidiary.
Held in reserve for exceptional circumstances.
(nautical) Of a ship, having both sails and an engine.
(grammar) Relating to an auxiliary verb.
Synonyms
• (supplementary): accessory
• (having sails and engine): motorsailer
Noun
auxiliary (plural auxiliaries)
A person or group that acts in an auxiliary manner.
A sailing vessel equipped with an engine.
(grammar) An auxiliary verb.
A marching band colorguard.
Source: Wiktionary
Aux*il"ia*ry, a. Etym: [L. auxiliarius, fr. auxilium help, aid, fr.
augere to increase.]
Definition: Conferring aid or help; helping; aiding; assisting; subsidiary;
as auxiliary troops. Auxiliary scales (Mus.), the scales of relative
or attendant keys. See under Attendant, a.
– Auxiliary verbs (Gram.). See Auxiliary, n., 3.
Aux*il"ia*ry, n.; pl. Auxiliaries (.
1. A helper; an assistant; a confederate in some action or
enterprise.
2. (Mil.) pl.
Definition: Foreign troops in the service of a nation at war; (rarely in
sing.), a member of the allied or subsidiary force.
3. (Gram.)
Definition: A verb which helps to form the voices, modes, and tenses of
other verbs; -- called, also, an auxiliary verb; as, have, be, may,
can, do, must, shall, and will, in English; ĂŞtre and avoir, in
French; avere and essere, in Italian; estar and haber, in Spanish.
4. (Math.)
Definition: A quantity introduced for the purpose of simplifying or
facilitating some operation, as in equations or trigonometrical
formulæ. Math. Dict.
Source: Webster’s Unabridged Dictionary 1913 Edition