auxil

a. [ L. auxiliaris: cf. F. auxiliaire. See Auxiliary. ] Auxiliary. [ Archaic ] [ 1913 Webster ]

The auxiliar troops and Trojan hosts appear. Pope. [ 1913 Webster ]

adv. By way of help. Harris. [ 1913 Webster ]

a. [ L. auxiliarius, fr. auxilium help, aid, fr. augere to increase. ] Conferring aid or help; helping; aiding; assisting; subsidiary; as auxiliary troops. [ 1913 Webster ]

Auxiliary scales (Mus.), the scales of relative or attendant keys. See under Attendant, a. --
Auxiliary verbs (Gram.). See Auxiliary, n., 3. [ 1913 Webster ]

n.; pl. Auxiliaries 1. A helper; an assistant; a confederate in some action or enterprise. [ 1913 Webster ]

2. (Mil.) pl. Foreign troops in the service of a nation at war; (rarely in sing.), a member of the allied or subsidiary force. [ 1913 Webster ]

3. (Gram.) 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; être and avoir, in French; avere and essere, in Italian; estar and haber, in Spanish. [ 1913 Webster ]

4. (Math.) A quantity introduced for the purpose of simplifying or facilitating some operation, as in equations or trigonometrical formulæ. Math. Dict. [ 1913 Webster ]