family name; surname; to be surnamed ...
Phonosemantic compound. 女 represents the meaning and 生 represents the sound.
《說文》：“姓，人所生也。古之神聖母，感天而生子，故稱天子。从女，从生，生亦聲。《春秋傳》曰：‘天子因生以賜姓。’”