Klífa

As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):

klífa

(klíf; kleif, klifum; klifinn), v. to climb (konungr kleif upp í einn bakka; ~ bratta brekku).

Possible runic inscription in Younger Futhark:ᚴᛚᛁᚠᛅ