G1642–ἐλαττόω–elattoō

He has to become greater while I become less.

ἐλαττοῦσθαι. elattousthai “to decrease.”

You made him a little lower than the angels; you gave him a crown of glory and honour, and made him ruler over all the works of your hands:

ἠλάττωσας ēlattōsas “You made lower”

But we see him who was made a little lower than the angels, even Jesus, crowned with glory and honour, because he let himself be put to death so that by the grace of God he might undergo death for all men.

ἠλαττωμένον ēlattōmenon “made lower”