afflicted with or marked by anxious uneasiness or trouble or grief, mentally upset over possible misfortune or danger etc, Thinking about unpleasant things that have happened or that might happen; feeling afraid and unhappy, verb_ Simple past tense and past participle of worry
A book used in schools or colleges for the formal study of a subject, A coursebook, a formal manual of instruction in a specific subject, especially one for use in schools or colleges, adjective_ Of or pertaining to textbooks or their style, especially in being dry and pedagogical; textbooky, textbooklike, Having the typical characteristics of some class of phenomenon, so that it might be included as an example in a textbook, Being a characteristic example of its kind; classic