Definition of reng in English:

reng

noun

  • A blue–black dye made from the powdered leaves of the indigo plant and used to colour the hair, typically in combination with henna.

Origin

Early 20th century; earliest use found in American Druggist. From Persian rang colour, hue, paint, dye, indigo (Middle Persian rang) from the same Indo-European base as Sanskrit raj- to become coloured.

Pronunciation

reng

/rɛŋ/