This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Archaic To make or become great or greater.

v. To become great or large; increase; dilate.

v. To become great with child; become pregnant.

v. To make great; magnify; enlarge; increase.

v. To make great; to aggrandize; to cause to increase in size; to expand.

verb-intransitive. To become large; to dilate.

To become great or large; increase; dilate.

To become great with child; become pregnant.

To make great; magnify; enlarge; increase.

"And while the whole face was the incarnation of fierceness and strength, the primal melancholy from which he suffered seemed to greaten the lines of mouth and eye and brow, seemed to give a largeness and completeness which otherwise the face would have lacked."

greatened    greatening    greatens   

engreaten   

aggrandize    expand    dilate    enlarge