Noah Webster's 1828 American Dictionary of the English Language is regarded by many as the finest English
dictionary ever published. The dictionary is available in many forms. I made the content available here for my own purposes,
out of personal admiration for this particular dictionary.
AGGROUP', AGGROUP'ED, AGH'AST, or more correctly AGHAST, a or adv. [Perhaps the participle of agaze; otherwise from the root of ghastly and ghost.] Struck with amazement; stupefied with sudden fright or horror.
aggroup appears in definitions for these words: Aggroup