Commingling among the extra free words today is a blog post explaining why each word begins with the same letter.
Commingle defined: To become blended. To cause to blend together; mix. VERB–The Free Dictionary.com/The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.