πρεπόντως
From LSJ
Οὐκ ἔστιν οὐδὲν κτῆμα κάλλιον φίλου → Nulla est amico pulchrior possessio → Als einen Freund gibt's keinen schöneren Besitz
English (LSJ)
Adv. part. of πρέπω,
A fitly, meetly, A.Ag.687 (lyr.); gracefully, Pi.O.3.9, Th.4.126. 2 c. dat., in a manner befitting, suitably to, σαυτῷ τε καὶ τῇ πατρίδι π. Pl.Lg.699d, cf. 835b: c. gen., in a manner worthy of, π. τῶν πραξάντων Id.Mx.239c.