The Platinum Dagger is a dagger in Final Fantasy XII. It has a small chance of inflicting Immobilize when attacking. In the Zodiac versions, its license can be learned for 60 LP by Shikari and White Mage, although the latter must unlock Famfrit first. In the original, everyone can learn it for 40 LP.
Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina, which is literally translated into "little silver".