70%RatingSave Gender Feminine Usage Welsh Pronounced Pron. SHAY-ki [key·IPA] Meaning & HistoryExpand Links Meaning unknown, possibly derived from Lleu. This name appears in the 14th-century poem Marwnad Lleucu Llwyd, written by Llywelyn Goch ap Meurig Hen for his deceased lover Lleucu Llwyd. Categories feminine forms, uncertain etymology