hen·na
noun/ˈhenə/
/ˈhenə/
[uncountable]- a red-brown dye (= a substance used to change the colour of something), used especially on the hair and skin
散沫花染剂（棕红色，尤用于染发和涂饰皮肤） Oxford Collocations DictionaryHenna is used before these nouns:- tattoo
Word Originearly 17th cent.: from Arabic ḥinnā'.