disingenuous

*****************************************************************
The word's out! Find more than 10,000 new words and meanings
in the new 11th Edition of the Collegiate Dictionary!
http://www.merriam-webster.com/cgi-bin/book.pl?c11.htm&1
*****************************************************************

The Word of the Day for May 13 is:

disingenuous   \dis-in-JEN-yuh-wuss\   adjective
     : lacking in candor; also : giving a false appearance of 
simple frankness : calculating 

Example sentence:
     "I swear I'll be back with the money," the customer assured 
the cashier with a disingenuous expression.

Did you know? 
     Today's word has its roots in the slave-holding society of 
ancient Rome. Its ancestor "ingenuus" is a Latin adjective 
meaning "native" or "freeborn" (itself from "gignere," 
meaning "to beget"). "Ingenuus" begot English "ingenuous." That 
adjective originally meant "freeborn" (as in "ingenuous Roman 
subjects") or "noble and honorable," but it eventually came to 
mean "showing childlike innocence" or "lacking guile." In the 
mid 17th-century, English speakers combined the negative 
prefix "dis-" with "ingenuous" to create "disingenuous," 
meaning "guileful" or "deceitful."