from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Archaic A battle-ax with two cutting edges.
- n. Archaic A mattock with one blade like an ax and the other like an adz.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An axe with two cutting blades
- n. A mattock
- n. A double bladed tool used in gate type hurdle making for cutting out mortices, with a flat chisel and a mortice chisel or hook, similar to the much larger french carpenter's tool, the bisaigue (or besaigue)
- n. A double-bladed halberd or battle-axe
from The Century Dictionary and Cyclopedia
- n. A double-bladed battle-ax, especially that carried by the Northern nations.
- n. A broadsword: so called from a misunderstanding of the word. See the quotation.
- n. A kind of double ax; a kind of mattock the blade of which has one end shaped like an ax and the other like an adz.
- n. A mortising-tool.
- n. A reaping-hook.
- n. Same as roaring boy (see roaring).
A round buckler he bore and a huge twibill, which no man of the kindred could well wield save himself; and it was done both blade and shaft with knots and runes in gold; and he loved that twibill well, and called it the Wolf's Sister.
We have ‘twilight’, but ‘twibill’ = bipennis (Chapman) is extinct.
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