fem. proper name, from Greek opheleia "help, aid," from ophelein "to help, aid, assist," ophelos "advantage, help," from PIE root *obhel- "to avail" (source also of Armenian avelum "increase, abound").
surname, from marshal (n.). The city in Texas, U.S., was named in 1841 for U.S. Supreme Court Chief Justice John Marshall (1755-1835). The Marshall Plan, "U.S. assistance to aid certain Western European nations recovering from World War II," is from 1947, named for its initiator, George C. Marshall (1880-1959), who was U.S. Secretary of State 1947-49. The Marshall Islands in the western Pacific were explored in 1788 by British naval captains John Marshall (1748-1819) and Thomas Gilbert, and named for the former (for the latter, see Kiribati). Related: Marshallese.