What does Everleigh mean?
A modern spelling elaboration with no independent historical etymology, pairing 'ever' with the '-leigh' suffix (a respelling of Old English 'leah', meadow/clearing). It echoes the surname Everly/Everley but is used today chiefly as a fashionable invented given name.
What does Emberly mean?
A modern American coinage with no established etymology, built from the word 'ember' (a glowing coal, from Old English 'aemerge') plus a fashionable '-ly' ending. It carries a fire association by sound and sense but is an invented name, not a traditional one.