岩（yan）
Name meaning
岩 (yan), related to traditional 巖 (Yan) in older usage, means rock, cliff, cave or high stony terrain. In a name it should suggest firmness, endurance and a grounded spirit, not harshness.
Practical naming use
Use 岩 (yan) when the name should feel steady, natural and resilient. It suits outdoor, scientific, architectural, spiritual or quiet leadership identities. Pair it with a character that adds gentleness, brightness or moral direction.
Pair 岩 (yan) with a character that makes the strength humane, such as 岩安 (Yanan) Yan'an, 岩明 (Yanming), 岩清 (Yanqing) or 岩德 (Yande). Avoid another heavy stone word if the name becomes too severe.
岩安 (Yanan): Yan contributes rock, firm cliff; An adds peace, safety.
Reference
MOE Dictionary of Chinese Character Variants, 岩 (Yan) entry
MOE variant note connecting 岩 (Yan) and 巖 (Yan)
Historical / name-use references
岩古 (Yangu)
Yangu is listed in the DILA Buddhist Authority Database as a Song-dynasty monk. This gives premodern religious name-use evidence for 岩 (Yan).