[Meaning] the leaves of the fig[-tree].[1]
"Slave, bring me a thrion of salt-fish, stale." Aristophanes [says this].[2] A thrion is a particular concoction amongst Athenians, which includes pork-fat and kid and wheaten-flour and milk and raw porridge to make it solid; and thus, put into fig-leaves, it became a very pleasant food. So [says] Didymus. Another recipe was called thrion too, made of brain with relish and cheese and wrapped in fig-leaves and roasted. Since the slices are put into leaves they stay firm. And 'stale' means old and not new.[3]
For Homer does not set fig-leaves and kandulos[4] and milk-cakes[5] and special honey-cakes[6] before the kings.[7]
And Aristophanes [writes]: "but I might lose the two fig-leaves of my brain!"[8] He is speaking in reference to the shape of the brain. For it lies just like thria. That is leaves of a fig[-tree].