African pepper
noun
Any of several plants found or cultivated in Africa, the fruits of which have a hot, spicy flavour and are used in cooking; especially Capsicum frutescens (family Solanaceae), Piper clusii (family Piperaceae), and Xylopia aethiopica (family Annonaceae).
Origin
Late 18th century; earliest use found in Thomas Clarkson (1760–1846), slavery abolitionist.