Ormolu

Ormolu, a name given to bronze or brass of a golden-yellow colour, and resembling gold.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Orme, Robert * Ormonde, James Butler, Duke of
[wait for the fun]
Original Sin
Orinoco River
Orion
Orissa
Orkney Islands
Orlando
Orleans
Orleans, Dukes of
Orloff
Orme, Robert
Ormolu
Ormonde, James Butler, Duke of
Ormuz
Ormuzd
Orontes
Orosius, Paulus
Orpheus
Orrery
Orsini, Felice
Orsova
Orviëto