素（su）
Name meaning
素 (Su) carries plainness, purity and an unadorned elegance that does not depend on luxury. In a name it suggests restraint, clarity and a beauty made stronger by simplicity.
Practical naming use
素 (Su) is useful when a name needs plain, pure, simple elegance rather than a generic pleasant sound. Its register is minimal, clean, so it can support a girl name that feels culturally legible, visually compact and easy to explain. The character should be paired with a second character that gives the image a human scene: learning, calm action, public responsibility, graceful movement or long-range aspiration.
Pair 素 (Su) with characters that soften or complete its core image. Bright partners make it more optimistic; scholarly partners make it more literate; water or nature partners make it calmer; virtue partners make it more formal.
素安 (Suan): Su contributes plain, pure; An adds peace, safety.
Reference
Nineteen Old Poems
Historical / name-use references
素女 (Sunu)
Sunu is a legendary female figure in early Chinese culture. The name directly contains the target character, giving it a mythic-classical anchor around plainness, purity and esoteric knowledge.