1899, Samuel Roffey Maitland, Essays on Subjects Connected with the Reformation in England, J. Lane, page 256 (Google Books entry) quoting a letter:
circa 1540, Stephen Gardiner, CCLX. Gardyner to King Henry VIII,
I never said naye to any request made, wherwith to resiste your Highnes pleasour, but oonly, in most humble wise, toke upon me to be a suter to your Highnes goodnes, wherunto I have ben bolded by thaboundaunce of your Majestes favour, heretofore shewed unto me.
1981, LeRoy R. Hafen, Broken Hand: The Life of Thomas Fitzpatrick, Mountain Man, Guide and Indian Agent, University of Nebraska Press, page ??, →ISBN
For example, the entry on Industrialisation may be referred to by the bolded word industrial.
On page 1, in the footnote, we recommend inserting the bolded text: "The Edward Byrne Memorial.... within BJA, but is one of approximately 20 distinct programs administered by BJA."
2003, William E. Ryan & Theodore E. Conover, Graphic Communications Today, Thomson Delmar Learning, page 98, →ISBN
Notice the bolded type sandwiched between lighter weight typefaces.
2005, Robert T. Uda, Career Quest for College Graduates: Developing a Successful Career by Leveraging Each of Your Jobs, iUniverse, page 131, →ISBN
Underlining Bolded Words. People keep both underlining and bolding section headings. You should either underline un-bolded words or just bold words without underlining them.