Answer:
My first is in wield, sever bones and marrow. My second is in blade, forged in cold steel. My third is an arbalest, and also in arrows. My fourth is in power, plunged through a shield. My fifth is in honor, and also in vows. My last will put an end to it all.
The older they are the less wrinkles they have.
I weaken all men for hours each day. I show you strange visions while you are away. I take you by night, by day take you back. None suffer to have me, but do from my lack.
A little house full of meat, no door to go in and eat.
What can't you see, hear or feel, until its too late. What shadows love, and shopkeepers hate?
You use it between your head and your toes, the more it works the thinner it grows.