Νόμιζα ότι αναφερόταν σε αυτό από την ίδια σελίδα που δίνεις, Νίκελ:
argos "swift" (adj.), an epithet, literally "shining, bright" (see argent; compare also Sanskrit cognate rjrah "shining, glowing, bright," also "swift"), "because all swift motion causes a kind of glancing or flickering light"...