Ogmios

Ogmios was a Gaulish deity, who Lucian records was depicted as a bald old man with a bow and club leading an apparently happy band of men with chains attached to their ears from his tongue. This is thought by some scholars to be a metaphor for eloquence, possibly related to bardic practices. Lucian records that the Gauls associated him with Hercules, but his appearance on two defixiones from Austria suggests that he was also associated with Hermes in Eastern Celtic tradition.
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[Celtic] The Celtic patron god of scholars and personification of eloquence and persuasiveness. It is he who invented the runic language of the Druids. Ogmius escorts souls on their journey to the after-live. He is represented as an old man, with a bald head, and dressed in a lion skin. His attributes are a bow and stick. He was worshipped in Gaul (Celtic France). His Irish counterpart is Ogma.