P. ὑποτελής, φόρου ὑποτελής; see subject.
be tributary to: P. συντελεῖν εἰς (acc.).
of a river, be tributary to, use discharge itself into: P. ἐκβάλλειν, εἰς (acc.), ἐξιέναι (ἐξίημι), εἰς (acc.); see discharge.