Come by

Full definition of come by

Verb

1. (transitive) To obtain; to get, especially by chance or involuntarily.
   Somehow he came by a substantial fortune.
   A loyal friend is hard to come by.
• 1879, Richard Jefferies, The Amateur Poacher Chapter 1, They burned the old gun that used to stand in the dark corner up in the garret, close to the stuffed fox that always grinned so fiercely. Perhaps the reason why he seemed in such a ghastly rage was that he did not come by his death fairly. Otherwise his pelt would not have been so perfect.
2. (intransitive) To come near to; to pass; to visit.
   Your beau came by while you were shopping.

Interjection

1. A command to a sheepdog to move clockwise around the sheep