or Si·le·nos, Sei·le·nos
noun, plural Si·le·ni [sahy-lee-nahy] /saɪˈli naɪ/ for 2. Classical Mythology.
a forest spirit, sometimes referred to as the oldest of the satyrs and the foster father, teacher, and companion of Dionysus: often represented as a bearded old man.
(lowercase) any of a group of forest spirits similar to satyrs: often represented as a drunken old man with the legs and ears of a horse.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun Greek myth
chief of the satyrs and foster father to Dionysus: often depicted riding drunkenly on a donkey
plural Sileni (saɪˈliːnəɪ) (often not capital) one of a class of woodland deities, closely similar to the satyrs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1710, from Greek Seilenos, foster-father of Bacchus and leader of the satyrs; the name is of unknown origin (Klein compares Thracian zilai "wine").
Online Etymology Dictionary, © 2010 Douglas Harper