from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An Aboriginal boy or servant.
- n. Any plant in the genus Xanthorrhoea, native to Australia.
from The Century Dictionary and Cyclopedia
- n. The common name of the Australian grass-tree, Xanthorrhæa arborea, etc., a juncaceous plant with a thick blackened trunk and a terminal tuft of wiry, grass-like leaves.
From black + boy. For sense (plant of genus Xanthorrhoea): from a supposed resemblance of the plant to an Aboriginal boy holding an upright spear. (Wiktionary)