stave

1. One of a number of narrow strips of wood, or narrow iron plates, placed edge to edge to form the sides, covering, or lining of a vessel or structure; especially, one of the strips which form the sides of a cask, barrel, pail, etc.
2. One of the bars or rounds of a rack, rungs of a ladder, etc; one of the cylindrical bars of a lantern wheel
3. A metrical portion; a stanza; a staff.
4. The set of five horizontal and parallel lines on and between which musical notes are written or pointed; the staff.
5. A sign, symbol or sigil, including rune or rune-like characters, used in Icelandic magic.
6. A staff or walking stick.

Plural staves