I suppose you are aware that the name of Bilenger, or Billinger, is of occasional though by no means frequent occurrence both in England and France. You have heard of Billings-gate, and of Billing-ham, the unfortunate assassin of poor Percival. Likewise of Billing-ton, all modifications of the same root: Belingart, Bilings-home or Billing-ston. But what is Billin_ger_? Clearly that which is connected some way or other with Billing. You will find _ger_, or something like it, in most European tongues—Boulan_ger_, horolo_ger_, tal_ker_ wal_ker_, ba_ker_, bre_wer_, beg_gar_. In Welsh it is of frequent occurrence in the shape of _ur_ or _gwr_—hin_ur_ (an elder), her_wr_ (a prow_ler_); in Russian the ger, gwr, ur, er, appears in the shape of _ik_ or _k_—Sapojgn_ik_, a shoemaker, Chinobu_ik_, a man possessed of rank. The root of all these, as well as of _or_ in Senator, victor, etc., is the same as _ker_ or _kir_; which means, Lord, master, maker, doer, possessor of something or connected with something. We want now to come at the meaning of Beling or Billing, which probably means some action, or some moral or personal attribute. Bolvile in Anglo-Saxon means honest, Danish Bollig; Wallen, in German, to wanken or move restlessly about; Baylan, in Spanish, to dance, connected with which are to whirl, to fling, and possibly Walloon and Fleming. Belenger therefore may mean a Billiger or honest fellow, or it may mean a Walter-_ger_, a whirl_enger_, a flinger or something connected with restless motion. Allow me to draw your attention to the word “Will” in the English word “Will of the wisp.” It must not be supposed that this “Will” is the abbreviation of William; it is pure Danish, “Vild,” pronounced “will,” and signifies wild, “Vilden Visk; Vilden Visk,” the wild or moving wisp. I can adduce another instance of the corruption of the Danish “vild” into “will.” The rustics of this part of England are in the habit of saying “they are led will” (vild or wild), when from intoxication or some other cause they are bewildered at night and cannot find their way home. This expression is clearly from the old Norse or Danish. I am not at all certain that “Bil” in Bilinger may not be this same “will” or “Vild,” and that the word may not be a corruption of Vilden, old or elder, wild or flying fire. It has likewise occurred to me that Bilinger may be derived from “Volundr,” the worship of the blacksmith or Northern Vulcan. [GEORGE BORROW.] LETTER III. _To_ MARY BORROW. Constantinople. _September_ 16_th_, 1844. MY DARLING CARRETA,