How is the stack of wood where witches were burned upon called? Pyre or stake?

質問を翻訳

The stake is the wooden post that the witch is tied to.

Pyre is usually a wooden structure upon which a dead body is cremated - 'funeral pyre' is the usual term. If we use 'pyre' for a witch-burning it has a slightly poetic sound, as the person in the fire is not generally alive when you light it!! But it does get used.

There's also the term 'bonfire' but that applies to any large constructed/controlled fire.