ὑπολάμπω
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
English (LSJ)
A shine under, ὁ ἥλιος εἰς τὰς παστάδας ὑ. X.Mem.3.8.9; ὑ. τὰ ὄμματα καθεύδοντος, of a lion, Plu.2.670c:— Med., τέφρῃ πῦρ ὑπολαμπόμενον AP12.80 (Mel.). II begin to shine, ὡς τὸ ἔαρ ὑπέλαμπε Hdt.1.190, cf. Ael.NA8.22; ἕως ὑ. ib.10.50; ὑ. ἡ ἡμέρα Plu.Ant.49: metaph., ὑ. τὸ ἦθος ταῖς παρειαῖς Poll.2.87.