A small Indian tree, Wrightia tinctoria (family Apocynaceae), with white wood and a milky sap.
pala indigonoun a kind of indigo obtained from the leaves of this tree..
Origin
Mid 19th century; earliest use found in Peter Simmonds (1814–1897), newsagent and journalist. From Malayalam and Telugu pāla, Tamil pālai (usually also pronounced as pāla), name applied to several plants with milky sap from Malayalam pāl, Tamil pāl animal or vegetable milk.
pala2
/ˈpɑːlə/
Entomology
noun
A shovel-shaped or scoop-shaped structure; specifically one forming an extension of the tarsus of the foreleg in certain aquatic heteropteran insects, used chiefly in feeding and (by the male) in mating.
Origin
Mid 19th century. From post-classical Latin pala shovel-shaped or scoop-shaped structure forming an extension of the tarsus of the foreleg in certain aquatic heteropteran insects from classical Latin pāla spade, of uncertain origin.