Anakuptō means to lift up one's head, to straighten up, or to raise oneself up after being bowed down. It is a compound of ana (up) and kuptō (to stoop/bend). Appearing only 4 times in the NT, it is used of physical straightening (the bent woman healed by Jesus; rising from shame) and the eschatological lifting of the head at the approach of redemption (Luke 21:28).
The most powerful theological use is Luke 21:28: "When these things begin to take place, stand up and lift up your heads [anakupsate], because your redemption is drawing near." In contrast to the world's despair and fear at end-time events, disciples are to lift their faces — the physical posture of hope and anticipation. This is the same movement as the woman "straightened up" after 18 years of bondage (Luke 13:11–13) — liberation reverses the bent-over posture of oppression. Christ lifts what sin has bowed down.