What does anvil mean?
The definition of anvil
An”vil, n.
Etym: [OE. anvelt, anfelt, anefelt, AS. anfilt, onfilt; of uncertain origin; cf. OHG. anafalz, D. aanbeld.]

1 An iron block, usually with a steel face, upon which metals are hammered and shaped.
2 Anything resembling an anvil in shape or use. Specifically (Anat.),
the incus. See Incus. To be on the anvil, to be in a state of discussion, formation, or preparation, as when a scheme or measure is forming, but not matured. Swift.

An”vil, v. t.
To form or shape on an anvil; to hammer out; as, anviled armor. Beau. & Fl.