At milda
Old Swedish Dictionary - at mildaMeaning of Old Swedish word "at milda" in Swedish.
As defined by K.F Söderwall's dictionary of Medieval Swedish:
Possible runic inscription in Medieval Futhork:ᛆᛏ:ᛘᛁᛚᚦᛆ
Medieval Runes were used in Sweden from 12th to 17th centuries.