In a Webster's Dictionary entry:imper.
... is among 1,700 new 
entries that have been added recently to the Merriam-Webster ... 2006, ending a 
41-year drought in imperial male heirs, Japan's government gladly... [DOC] [TLE] Merriam-Webster's Collegiate Dictionary, 11th Edition by Merriam ... [PAR] Jul 1, 2003 ...