οὐκ ἔστι λύπης ἄλγημα μεῖζον → there is no greater pain than grief
perductus: a, um, Part., from perduco.
perductus, a, um, part. p. de perduco.
perductus, a, um. part. p. v. perduco. :: Aqua perducta 一息飲之水。