Meni in Fausset's Bible Dictionary
("numbered"), Chaldee. The first word of the mysterious
handwriting (Daniel 5:25-26), "God hath numbered thy kingdom
and finished it," i.e. fixed its number of years, and that
number is now complete. The doubling of "Mene" marks its awful
certainty.
Read More about Meni in Fausset's Bible Dictionary