Emma comes from a Germanic root meaning "whole" or "universal," and it's traditionally connected to completeness rather than any single trait. Historically the name carried an implication of quiet strength -- someone regarded as whole in herself, not defined by one virtue. That sense of wholeness has stayed central to how the name reads today.
You can address Mercury on the empty signs while the Moon can be addressed on both positions indistinctively. - Picatrix (Andalusia, ~1000.AD)