Oghma
 
 

Oghma was the Irish God of literature and eloquence. He was
the son of De Dagda and the champion of the Tuatha de Dannan.
He carried a huge club. He invented the Ogham script which is named
after him. It was originally intended to be carved upon the edges
of standing stones. He was also called Cermait, which means
`honey-mouthed` or Grainainech, meaning `sunny-faced`. He married
Etain, daughter of Diancecht, the God of Medicine, and got several
children. His son Cairpre became the professional bard of the Tuatha de Dannan.