from The Century Dictionary and Cyclopedia
- n. Jealous watchfulness or care, like that of the griffin: as, the griffinism of a London dowager.
- n. In India and the East, the state or character of a griffin or new-comer; greenness or inexperience. Also griffinage.
Sorry, no etymologies found.
It was clearly an undesirable thing to be a griffin, or at least poor form to demonstrate griffinism.