Wankelmut
From LSJ
ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → as a foreigner, follow the laws of that country | when in Rome, do as the Romans do
German > Latin
Wankelmut, infirmitas; inconstantia; levitas; animus mobilis od. varius; ingenii od. animi mobilitas; inconstantia et mutabilitas mentis; mobilitas et levitas animi. – der W. des Glücks, fortunae mobilitas.