Ἰκάριον

From LSJ

ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm

Source

Russian (Dvoretsky)

Ἰκάριον: τό (sc. πέλαγος) Икарийское море (между Кикладами и побережьем Карии) Her., Diod.