Answer: greaten

AnswerCrossword Clue
GREATENAmplify
GREATENIncrease
GREATENBecome more important
GREATENEnlarge.
GREATENMagnify.
GREATENEnlarge; increase.
GREATENExpand.
GREATENBecome larger: Archaic.
GREATENEnlarge
greatento make greater; enlarge; increase
greatento make greater (large (great in size))
greatento become greater