touchwood
NounWordNet 3.0
Webster's Dictionary (GCIDE)
Touchwood \Touch"wood`\, n. [Probably for tachwood; OE. tache tinder (of uncertain origin) + wood.] [1913 Webster]
1.Wood so decayed as to serve for tinder; spunk, or punk. [1913 Webster]
2.Dried fungi used as tinder; especially, the Polyporus igniarius. [1913 Webster]