Diminutive of any name containing the element -sia-. A noted bearer is Australian singer-songwriter Sia, born Sia Kate Isobelle Furler (b.1975), best known for her collaboration songs 'Titanium', with David Guetta, and 'Wild Ones', with Flo Rida.
From Sino-Korean 始 (si) meaning "begin, start" or 時 (si) meaning "time, era, season" or 詩 (si) meaning "poetry, poem, verse" combined with 雅 (a) meaning "elegant, graceful, refined" or 娥 (a) meaning "good, beautiful" or 阿(a) meaning "hill". Other combinations of hanja characters can also form this name.