Lewis & Short

Laeāna, ae, f., a town of Arabia, Plin. 6, 28, 32, § 156.
Hence, Laeānīta, ae, m., an inhabitant thereof, Plin. 6, 28, 32, § 156.
Laeānītĭcus, a, um, adj., Plin. 6, 28, 32, § 156.