Interesting antedatings

Revision of the entries in the March 2003 OED Online update has revealed an earlier origin than previously known for many words, including:

• mournful (antedated to a1425 from 1542)
• moussaka (1862 from 1941)
• moviegoing (adjective) (1922 from 1946)
• mujahidin (1885 from 1958)
• mumble (noun) (1653 from 1902)
• murkiness (a1425 from 1813)
• muscle(a1398 from 1533)