Dictionary.com/cosset (etymology):

cosset (KOSS-it) transitive verb

To Pamper.

Source: The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

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v : treat with excessive indulgence; “grandparents often pamper the children”; “Let's not mollycoddle our students!” [syn: pamper, featherbed, cocker, baby, coddle, mollycoddle, spoil, indulge]

Source: WordNet ® 2.0, © 2003 Princeton University

For all the sniveling brats in our lives or our stories, a word now enters our vocabulary to describe how they came to be the character they are.