What does aegyptilla mean in Latin?

aegyptilla, a noun, means “A precious stone coming from Egypt, probably a kind of onyx”.

What is the genitive of aegyptilla?

The genitive singular is aegyptillae. aegyptilla is feminine, first declension.

noun · femininefirst declension

aegyptilla f (genitive aegyptillae)

aegyptilla, ae, f.,

I. a precious stone once found in Egypt, prob. a kind of onyx, Plin. 37, 10, 54, § 148; Isid. Orig. 16, 11, 3.

From Aegyptus.