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.

Used to express farewell; often used with following now. Bye.

Belarus.

1. Being off the main route; side
2. Incidental.

(Homonym: buy, bye).
So as to pass a given point; SYN. past.
In reserver; not for immediate use.

Something of secondary importance; a side issue