Beittr

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

beittr

a. sharp, keen (of cutting instruments).

Possible runic inscription in Younger Futhark:ᛒᛁᛁᛏᛏᚱ

Also available in related dictionaries:

This headword also appears in dictionaries of other languages closely related to Old Icelandic.

• Old Norse - Cleasby & Vigfusson Dictionary