Tinder \Tin"der\, n. [OE. tinder, tunder, AS. tynder, tyndre; akin to tendan to kindle, D. tonder tinder, G. zunder, OHG. zuntara, zuntra, Icel. tundr, Sw. tunder, Dan. t["o]nder. See Tind.]

Something very inflammable, used for kindling fire from a spark, as scorched linen.

German tinder. Same as Amadou.

Tinder box, a box in which tinder is kept.

Source: Webster's Revised Unabridged Dictionary (1913)