What does Aylin mean?
Aylin is a Turkish name built on 'ay' ('moon'), usually read as 'moon halo' or 'belonging to the moon.' The moon root is solid, though the exact second element is less certainly glossed.
What does Esmeray mean?
From Turkish 'esmer' meaning 'dark, brunette' and 'ay' meaning 'moon', giving 'dark moon'. (A 'sunbeam/beloved' reading circulates but does not fit the Turkish elements and appears to be a folk reinterpretation.)