I want to put together a outdoor faucet for warm weather use. The idea would be to connect a hose to one sill cock and run it through the garden to a spot by another deck and connect it to another sill cock.
Assuming the second sill cock to have either ½" or ¾" pipe threads, a trip to Home Depot or a plumbing supplier ought to score an NPT to Hose adapter for just a few bucks. Nothing really complicated, here.
Keep in mind that hoses generally aren't intended to hold constant pressure, you might want to keep it off until you need to use it... If this is something that you plan on having there year after year you could consider running a line of PEX plastic pipe, its a bit more work/$ but can be permanent and robust.
Your suggestion has me rethinking my original plan. I think I will run a line from the basement under the deck to a sill cock. It can be pitched for draining for winter.