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
smyrna: ae, f., = σμύρνα>,
I myrrh, Lucr. 2, 504; Dig. 39, 4, 16, § 7.