Appoll

Alexis

From the greek name Ἄλεξις (Alexis), meaning "helper" or "defender"

Apollo

God of music, arts, knowledge, and the sun in ancient Greek mythology.

Adaire

Recorded as a rare english given name for girls

Adonis

From Phoenician ʾadon, "lord, master"; used in Italian

Adriel

Means "flock of God" in Hebrew, from ʿeḏer (flock) and ʾel (God).

Aether

Latinized form of greek Αἰθήρ (Aither), "ether, heaven", from αἴθω (aitho), "to burn, to ignite"

Akila

No documented meaning in the sources checked

Alec Or Alex

Alex

Short form of Alexander, Alexandra and other names beginning with Alex

Alexys

No documented meaning in the sources checked