yew
From LSJ
τὸ μὲν εὖ πράσσειν ἀκόρεστον ἔφυ πᾶσι βροτοῖσιν → all mortals have by nature an insatiable appetite for success, our mortal state with bliss is never satiate, success is something for which humanity is insatiatable
English > Greek (Woodhouse)
subs.
P. μῖλαξ, ἡ (Plat.).
The word is also found in Eur., Bacch. 703, and Aristophanes, Nub. 1007, but apparently with a different meaning.