Its purpose is to "aromatise" rooms, but replace the sickly aromatic oil with H2O and it will create a humid atmosphere, particularly if you've crammed plants on windowsills above radiators in desperate search of light.    From Wordnik.com.  [Life and style | guardian.co.uk] Reference

A predominant flavour; and aromatise with 3 grammes of fine cinnamon, and as much mace, both well bruised.    From Wordnik.com.  [The Mirror of Literature, Amusement, and Instruction Volume 13, No. 372, May 30, 1829] Reference