ἀκάτειος
From LSJ
ἑτέρως ἠδύνατο βέλτιον ἢ ὡς νῦν ἔχει κατεσκευάσθαι → otherwise they could have been constructed better than they are now (Galen, On the use of parts of the body 4.143.1 Kühn)
English (LSJ)
ον, prop.
A belonging to an ἄκατος, q. v.; esp. ἀ. ἱστός foremast, IG2.793, etc.; ἀ. κεραία yard belonging thereto, ib., cf. Poll. 1.91. II Subst. ἀκάτειον, τό, (sc. ἱστίον) small sail, opp. τὰ μεγάλα ἱστία, X.HG6.2.27, Epicr.10 (with play on ἄκατος 11), cf. Luc.Lex.15, J. Tr.46, Hist. Conscr.45; ἄρασθαι τὸ ἀ., i.e. take to flight, prob. l. for ἀκάτιον in Epicur.Fr.163, cf. Ar.Lys.64.
Greek (Liddell-Scott)
ἀκάτειος: ἱστός, ἀκάτειος κεραία, Ἐπιγρ. Ἀθηνῶν. Rang. Ant. Hell. 2343a. - Ἐν τοῖς συγγραφεῦσιν εὕρηται μόνον ἡ διὰ τοῦ ἰῶτα γραφή.