Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
κύφοντα one having downcast LXX.Job.22.29
κεκυφώσ having downcast eyes LXX.1Kgs.21.27

Liddell-Scott-Jones

κύφω (kuphō) to have downcast eyes G:V

κύφω-ω,

={κύπτω}, κύφοντα ὀφθαλμοῖς with downcast eyes, [LXX]

LSJ Scripture Refs: LXX.Job.22.29