Henna

A reddish-brown dye obtained from a tropical shrub, used to color hair, skin, and nails, especially in traditional body art.

From Arabic ḥinnā', the name for both the plant (Lawsonia inermis) and the dye made from its leaves. The word entered various European languages through trade contacts with Arabic-speaking regions. English adopted it in the 17th century through contact with Middle Eastern and North African cultures, initially through colonial and trading relationships.