v. t. To make great; to aggrandize; to cause to increase in size; to expand. [ R. ] [ 1913 Webster ]
A minister's [ business ] is to greaten and exalt [ his king ]. Ken. [ 1913 Webster ]
v. i. To become large; to dilate. [ R. ] [ 1913 Webster ]
My blue eyes greatening in the looking-glass. Mrs. Browning. [ 1913 Webster ]