Proto-Germanic: *flanzōn- vb., *flansa-z, *fluns=
Meaning: twist (one's mouth), put out (of joint)
Low German: nordd. plinsen, flinsen 'weinen'
Old High German: { flannēn 'os contorquere' (Notker) }
Middle High German: vlans st. m. 'Mund, Maul, bes. verzerrtes Maul'
German: dial. Flunsch 'aufgeworfener, schmollender Mund', byr. flenschen 'das Gesicht verzerren'