Usage: 2 forms in 3 verses
Form Translated As     In Verse(s)
φερνή dowry LXX.Exod.22.16LXX.Exod.22.17
φέρνην dowry LXX.Gen.34.12

Liddell-Scott-Jones

φερνή (phernē) a dowry G:N-F

φερνή-, ,

(φέρω):— that which is brought by the wife, dowry, [Refs 5th c.BC+], etc.; θεραποντὶς φ. a dowry of handmaids, i.e. given as a dowry, [Refs 4th c.BC+]; plural, of a dower, as consisting of divers presents, [Refs 5th c.BC+]; φερνήαὶ πολέμου, of a wife won in battle, [Refs 5th c.BC+]; also, bridal gifts, λάζυσθε φ. τάσδε, παῖδες, of Medea's presents to Creüsa, [Refs]

__II Doric dialect φερνή, portion of victim reserved for the God, [Refs 5th c.BC+]