One of the mysteries of the English language finally explained.
1A felt-like material prepared from the fruiting bodies of Fomes fomentarius and certain other fungi, used especially as tinder (usually after having been soaked in saltpetre); = "amadou". Now historical.
2More fully "German tinder fungus". The bracket fungus Fomes fomentarius; compare "tinder-fungus". Now rare.
Late 18th century. From German + tinder.
German tinder/ˈdʒəːmən ˈtɪndə/
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