The term 'Feminine Name Suffix' refers to a set of suffixes that are commonly used to create female names. The four solutions for this crossword are Etta (4 letters), Ella (4 letters), Ette (4 letters), and Ina (3 letters). Etta, Ella, and Ette are all derived from the Germanic name element 'Adal', meaning noble. Ina is derived from the Latin name element 'ina', meaning feminine. These suffixes are often used to create diminutive forms of female names, such as Josephine becoming Josette.