σταγόνες ὕδατος πέτρας κοιλαίνουσιν → 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
Ἐρινύς, -ύος, ἡ.
The Furies: use also Εὐμενίδες, αἱ, Κῆρες αἱ (Euripides, El. 1252).