Where does “Ayleen” come from?

Ayleen (German) comes from English Eileen, from Irish Eibhlín, from English Evelyn, from Old French Aveline.

Ancestry of “Ayleen”, step by step

Step	Language	Word	Meaning
1	English	Eileen	—
2	Irish	Eibhlín	—
3	English	Evelyn	—
4	Old French	Aveline	—