It means imperfect, incomplete unfinished or half-done. It is also the name of the cuticle or cloth that coats the shells of the eggs inside. In Botany it is also the name of two different plants of the family Asteraceae. One is the tusyla, mule's foot or horse helmet, whose scientific name is Tussilago farfara. The other is the same old beard, which has by scientific name Urospermum picroides.