From Chinese 缪 (miu) meaning “wrought, wrapping around” or “clever”. In ancient times this character was an alternate form of 穆 (mu) meaning “silent, solemn, tranquil”.
From Sino-Korean 美 (mi) meaning "beauty" combined with 羽 (u) meaning "feather", 雨 (u) meaning "rain", or 優 (u) meaning "excellence, superiority, gentleness". This name can be formed using other hanja combinations as well.