The Collaborative International Dictionary
sneezewood
Neishout \Neis"hout\, n. [From D. niezen to sneeze + hout wood.] (Bot.) The mahogany-like wood of the South African tree Pteroxylon utile, the sawdust of which causes violent sneezing (whence the name). Also called sneezewood.
Wiktionary
sneezewood
n. The wood of a South African tree; neishout.