What is "to foot a bill"

Foot \Foot\, v. t.

1. To kick with the foot; to spurn.
   --Shak.

2. To set on foot; to establish; to land. [Obs.]

   What confederacy have you with the traitors Late footed in the kingdom?
   --Shak.

3. To tread; as, to foot the green.
   --Tickell.

4. To sum up, as the numbers in a column; -- sometimes with up; as, to foot (or foot up) an account.

5. To seize or strike with the talon. [Poet.]
   --Shak.

6. To renew the foot of, as of a stocking.
   --Shak.

   To foot a bill, to pay it. [Colloq.] -- To foot it, to walk; also, to dance.

   If you are for a merry jaunt, I'll try, for once, who can foot it farthest.
   --Dryden.