FIX (3)

Fix, v. i. 1. 1. To become fixed; to settle or remain permanently; to cease from wandering; to rest.
Your kindness banishes your fear, Resolved to fix forever here. Waller. 2. 2. To become firm, so as to resist volatilization; to cease to flow or be fluid; to congeal; to become hard and malleable, as a metallic substance. Bacon.
To fix on, to settle the opinion or resolution about; to determine regarding; as, the contracting parties have fixed on certain leading points.