1. In or to a lower position than; below; directly under; at the foot of
2. Not suitable to the rank of; unworthy of
3. Under the control, pressure, or influence of
4. Concealed by; under the guise of

1. By the side of; in comparison with; on a par with
2. Besides
3. Not relevant to

ETYM Old Eng. bi, AS. bî, big, near to, by, of, from, after, according to; akin to OS. and OFries. bi, be, Dutch bij, Old High Germ. bî, German bei, Goth. bi. Related to Be-.
(Homonym: buy, bye).
1. Next to.
2. In front of.
3. A preposition indicating the author of an act.

1. Immediately following or adjacent to
2. In comparison to

ETYM Latin ancillaris, from ancilla a female servant.
Subservient or subordinate, like a handmaid; auxiliary.
Auxiliary; secondary; subordinate; auxiliary.

ETYM Latin auxiliarius, from auxilium help, aid, from augere to increase.
Functioning in a subsidiary or supporting capacity; SYN. subsidiary, supplemental, supplementary.