What does Jiya mean?
Hindi jiya (जिया), 'heart, soul, sweetheart', a colloquial term of endearment; also connected to jina 'to live'.
What does Aadya mean?
From the Sanskrit आद्या (ādyā), feminine of ādya, 'first, primordial, being at the beginning'. Associated with Adi Shakti / Durga as the primordial cosmic energy (Aadya Shakti).