fæstnung

== Old English == === Etymology === From fæstnian +‎ -ung. === Pronunciation === IPA(key): /ˈfæst.nunɡ/, [ˈfæst.nuŋɡ] === Noun === fæstnung f fastening ratification of something, especially a marital engagement ==== Declension ==== Strong ō-stem: === References === Joseph Bosworth; T. Northcote Toller (1898), “fæstnung”, in An Anglo-Saxon Dictionary, second edition, Oxford: Oxford University Press.