Greska
Old Swedish Dictionary - greskaMeaning of Old Swedish word "greska" in Swedish.
As defined by K.F Söderwall's dictionary of Medieval Swedish:
- grezka: grezko Al 7604, 8820. grezska. gredzka: gredzko ST 37 ). f.
Possible runic inscription in Medieval Futhork:ᚵᚱᚽᛋᚴᛆ
Medieval Runes were used in Sweden from 12th to 17th centuries.