henna
US /ˈhen.ə/
UK /ˈhen.ə/

1.
a reddish-brown dye, used especially for coloring the hair or skin, produced from the powdered leaves of a tropical shrub
:
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She decided to dye her hair with natural henna.
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The bride had beautiful henna designs on her hands.
1.
to dye or decorate with henna
:
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She asked the artist to henna her hands for the festival.
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Many women like to henna their hair for a natural reddish tint.