Otto or Attar of Roses, an essential oil obtained by distilling rose leaves of certain species in water, of very strong odour, pleasant when diluted; is used for perfumery; it is made in India, Persia, Syria, and at Kezanlik, in Roumelia.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Otterburn * Ottomans