literally (part of speech: adverb)
veraciously (part of speech: adverb)
truly (part of speech: adverb)
- No native ghost has yet been authentically reported to have frightened an Englishman; but many English ghosts have scared the life out of both white and black. - "The Phantom 'Rickshaw and Other Ghost Stories", Rudyard Kipling.
- Top everything with plenty of grated cheese to make it authentically American au gratin. - "The Complete Book of Cheese", Robert Carlton Brown.
- In this perplexity of plan and of transmission, the Court of Directors may have made an arrangement of their affairs on the groundwork of the first scheme, which was officially and authentically conveyed to them. - "The Works of the Right Honourable Edmund Burke, Vol. VIII. (of 12)", Edmund Burke.