προσκτᾶσθαι
From LSJ
εἰ πλείονα δ' εἰδείης Σισύφου → if you were more intelligent than Sisyphus
Greek > English (Woodhouse Verbs Reversed)
(see also προσκτάομαι): acquire in addition, gain in addition, get in addition, obtain in addition
Lexicon Thucydideum
insuper comparare, ditioni suae adiicere, to acquire besides, add to one's dominion, 3.28.3, 4.95.2, 6.18.2, 6.24.3,
PASS. 2.62.3.