Touchwood

[Raeanne Dimick]

Wood so decayed as to serve for tinder; spunk, or punk.

[Donald Trump]

Said after a confident or positive statement, to express a hope for ones good luck to continue.

[SanchoPn 0]

material for starting a fire

[GrokLuth 0]

Rotten wood used to catch the fire struck from the flint.

[sky]

Touchwood is a type of dry, decaying wood that easily catches fire, often used for tinder. It is also used to refer to certain types of fungi that cause wood decay.