joyousness
From LSJ
τὴν πολιὴν καλέω Νέμεσιν πόθου, ὅττι δικάζει ἔννομα ταῖς σοβαραῖς θᾶσσον ἐπερχομένη → I call gray hairs the Nemesis of love, because they judge justly, coming sooner to the proud
English > Greek (Woodhouse)
substantive
joy: P. and V. ἡδονή, ἡ, τέρψις, ἡ, χαρά, ἡ, χαρμονή, ἡ (Plato, Philoctetes 43C, but rare P.), V. χάρμα, τό.
cheerfulness: P. and V. εὐθυμία, ἡ (Xen.).
happiness: P. and V. εὐπραξία, ἡ, Ar. and P. εὐτυχία. ἡ, P. εὐδαιμονία, ἡ, V. ὄλβος, ὁ (also Xen. but rare P.), εὐεστώ, ἡ; see also joy.