To incur a charge of; to require payment of a (specified) price.
It will cost you a lot of money to take a trip around the world.
To cause something to be lost; to cause the expenditure or relinquishment of.
Trying to rescue the man from the burning building cost them their lives.
To require to be borne or suffered; to cause.
To calculate or estimate a price.
I'd cost the repair work at a few thousand.
The estimation of the cost of a process or product.