ETYM as. rűn a rune, a secret, a mystery; akin to Icel. rűn, Old High Germ. and Goth. rűna a secret, secret colloquy, German and Dan. rune rune, and probably to Greek ereynan to search for. Related to Roun to whisper.
Any character from an ancient Germanic alphabet used in Scandinavia from the 3rd century to the Middle Ages; SYN. runic letter.
Character of simple ancient Teutonic alphabet; magical mark or sign.