Emma is a four-letter solution for the term Thompson or Watson. Emma is a popular female given name derived from the Germanic word ermen, meaning 'WHOLE' or 'UNIVERSAL'. It is also a diminutive of the name Emily, which is derived from the Latin word aemulus, meaning 'RIVAL'. Emma has been a popular name in the English-speaking world since the 19th century and is currently one of the top 10 most popular names for girls in the United States.