ἰλυόεις
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)
[ῑ], εσσα, εν, (ἰλύς)
A muddy, ποταμός A.R.2.823; ζάλος Nic. Th.568: metaph., ἀχλὺς ἰ., of the soul's material envelope, App.Anth.3.146 (Theon).