Effa is of Hebrew origin, derived from the word 'efah', which means 'fruitful'. It signifies abundance and prosperity. This name was notably used among the early Christians as a short form for names like Elizabeth or Efrat. In various cultures, Effa has been adapted and popularized over time, often associated with qualities such as fertility and vitality.
"Effa was a relatively popular name for newborns during the late 19th and early 20th centuries, with peaks in popularity around the late 1880s to early 1890s, and again in the mid-1920s. However, its usage appears to have significantly declined by the 1940s."