ἔτυχες εἰς τὴν μάχην ὑπὸ τοῦ στρατηγοῦ πεμφθεὶς → you happened to be sent into the battle by the general
σῑμά: adv. задрав нос, т. е. нагло (γελᾶν, μυχθίζειν Anth.).