πρόφυλαξ
From LSJ
διὰ λαμπροτάτου βαίνοντες ἁβρῶς αἰθέρος → passing lightly through clear-shining air (Euripides, Medea 829)
English (LSJ)
ᾰκος, ὁ,
A advanced guard: οἱ π., = αἱ προφυλακαί, Th.3.112, X.An.2.4.15, etc.
II officer on guard, Aen.Tact.22.9, and so prob. in IGRom.4.455 (Pergam.).—Also fem., Eratosth.Cat.22.
III epithet of Apollo, IG12(7).419.
