banana

banana

ba·nana [banana bananas]   [bəˈnɑːnə]    [bəˈnænə]  noun

a long curved fruit with a thick yellow skin and soft flesh, that grows on trees in hot countries
• a bunch of bananas
Idiom: go bananas  
Word Origin:
late 16th cent.: via Portuguese or Spanish from Mande. Mande is a group of Niger-Congo languages spoken by the Mande people of West Africa.  
Example Bank:

• The company has acquired an unhappy knack of slipping on banana skins.