unbezwingbar

From LSJ

πέτρην κοιλαίνει ρανὶς ὕδατος ἐνδελεχείῃ → constant dropping wears away a stone, constant dripping will wear away the hardest stone, little strokes fell big oaks, constant dripping wears the stone, constant dropping wears the stone, constant dripping will wear away a stone

Source

German > Latin

-zwinglich: unbezwingbar, -zwinglich, indomitus (unbezähmbar). – invictus (unbesiegbar; beide von leb. Wesen). – inexpugnabilis (unbestürmbar, von Orten). – unbezwungen, invictus.