ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: Middle English blakthorn, from blak black + thorn
1.
a. : a European spiny tree or shrub ( Prunus spinosa ) that has hard wood and bears small white flowers before the leaves and small purplish or blue black astringent fruits — see sloe
b. : a cane made of the wood of this tree or shrub
c. or blackthorn cocktail : a cocktail variously made from sloe gin or rye whiskey and French or Italian vermouth flavored with bitters and occasionally anisette
2. : pear haw