σκαφεῖον
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English (LSJ)
τό,
A spade, hoe, mattock, Hyp.Dem.Fr.7, Clearch.65, IG11(2).144 A 84 (Delos, iv B.C.), PPetr.3p.109, al. (iii B.C.), PCair.Zen.164.2, al. (iii B.C.), Ph.Bel.90.2, D.S.4.31, IG22.1631.409; cf. σκάφιον (A) IV. 2 prob. basin, ib.12.314.132, 22.1425.353. 3 concave mirror, used as a burning-glass, Plu.Num.9: Lat. scaphium, Mart.Cap.6.597.