Styrkning
Old Swedish Dictionary - styrkningMeaning of Old Swedish word "styrkning" in Swedish.
As defined by K.F Söderwall's dictionary of Medieval Swedish:
Possible runic inscription in Medieval Futhork:ᛋᛏᛦᚱᚴᚿᛁᚿᚵ
Medieval Runes were used in Sweden from 12th to 17th centuries.