What does olȳra mean in Latin?

olȳra, a noun, means “A type of grain similar to spelt, possibly another type of hulled wheat”.

What is the genitive of olȳra?

The genitive singular is olȳrae. olȳra is feminine, first declension.

noun · femininefirst declension

olȳra f (genitive olȳrae)

ŏlȳra, ae, f., = ὄλυρα,

I. a kind of grain, called also arinca, which greatly resembles spelt, Plin. 18, 10, 20. § 92; 22, 25, 57, § 121.

Borrowed from Ancient Greek ὄλυρα (ólura).