EIDDILIC.  Arthurian.  A name from the Welsh Triads, Eiddilic Corr ("feeble dwarf").  According to Rees, this is probably the original character that the French Girflet le Petit of Le Manteau mal taillé was based on. 

    Girflet le Petit is named in Le Manteau mal taillé, and is the squire of King Arthur.  The original ism most probably, Eiddilic Cor, who is mentinoed in the Triads, together with Tristan, and another as noted for obstinacy, and never being turned from his purpose.  The word Eiddil, signifies feeble, and Corr, means a Dwarf; so that Feeble the Dwarf, may have given the idea of Le Petit. (The Literary Remains of the Rev. Thomas Price Cornhuanawr, &c., Rees, 1854).