What does oenanthium mean in Latin?

oenanthium, a noun, means “an ointment made from grapes of the wild vine”.

What is the genitive of oenanthium?

The genitive singular is oenanthiī. oenanthium is neuter, second declension.

noun · neutersecond declension

oenanthium n (genitive oenanthiī or oenanthī)

oenanthĭum, ii, n. (sc. oleum, unguentum),

I. an ointment made from the grape of the wild vine, Lampr. Heliog. 23.