στενόσημος
From LSJ
εἰ ἀποκρυπτόντων τῶν Μήδων τὸν ἥλιον ὑπὸ σκιῇ ἔσοιτο πρὸς αὐτοὺς ἡ μάχη καὶ οὐκ ἐν ἡλίῳ → if the Medes hid the sun, the battle would be to them in the shade and not in the sun
English (LSJ)
ον,
A with narrow border: ἡ σ.,= Lat. tunica angusticlavia, opp. πλατύσ-, Arr.Epict.1.24.12.
German (Pape)
[Seite 935] mit schmalem Saume, Ggstz πλατύσημος; ἡ στ., sc. ἐσθής, tunica angusticlavia, Arr. Epict. 1, 24.