verb ~ 1.to foreshadow vaguely: intimate; *2a. to give a sketchy representation or outline of; b. to suggest or disclose partially; 3. to overshadow, obscure

*In her second book, the author developed ideas that she had merely adumbrated in her first work.

Merriam-Webster’s 365 New Words Calendar, www.pageaday.com, Workman Publishing