come%20about

verb

1. 1

   To come to pass; to develop; to occur; to take place; to happen.

   “We have to ask, how did this come about?”

2. 2

   To tack; to change tack; to maneuver the bow of a sailing vessel across the wind so that the wind changes from one side of the vessel to the other; to position a boat with respect to the wind after tacking. See also come to.

3. 3

   To change; to come round.