διὰ νήσων τὸν πλόον ἐποιεῦντο → they kept sailing through the islands
P. and V. σύννοια, ἡ, ἐνθύμησις, η (Eur., Fragment), φροντίς, ἡ (rare P.), P. ἔννοια, ἡ. P. θεωρία, ἡ.
