Rune

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 370

roon, n. One of the letters or characters peculiar alphabet in use among the Norsemen rhyme, etc., written in such characters; anything obscure or mysterious. — Ru'nic, a. Of, or pert, the Runes, or the language and letters of the ancient Norsemen. Rung. See Ring.