Priapus

Priapus was a god of fertility worshiped by primitive human tribes on the Isle of Firando in the Outer Isles southwest of Wa in Kara-Tur. He was believed to grant fertility to infertile women. He was one of the Eight Million Gods.

A big temple had been erected to Priapus on the island before Wa Year 1775 (1357 DR).

Background
Priapus is based on the unusually endowed fertility god Priapus of Greek and Roman mythology.