Some genealogical records include the abbreviation "do". In contemporary sources, such as abbreviated queries, "do" may mean "daughter of". It is also generally in use, especially in Scotland, to abbreviate "ditto."
n. pl. ditˇtos Abbr. do.
- The same as stated above or before.
- A duplicate; a copy.
- A pair of small marks ( " ) used to indicated that the word, phrase, or figure given above is to be repeated.
- As before.
v. tr. ditˇtoed ditˇtoˇing ditˇtos
- To duplicate (a document, for example).
Source of definition: The American Heritage Dictionary (electronic version)