Some other names with ORA, Annora, Coral, Flora.  It doesn't have the ORA, but Cora always makes me think of Clara-maybe you'd like that?  And ORA + Evelyn would give you Eleanor.  

If you like Evelyn I wouldn't let one student stop you.  Unless it was a particularly bad associtaion, it'll fade quickly I think.

But some other names that have a similiar feel to Evelyn but perhaps aren't aas common-Amelia, Hazel, Eliza, Carolyn.  Names that could also give you the Eve/Evie/Eva type nicknames-Geneva, Ginevra, Genevieve.   And some names that play up the "lyn" sound-Helen/Helena, Jocelyn.

Are any of these helpful?  Do you have anything in mind for possible middles?

What about Coraline, Coralyn, or Coralie?

Lenore or Lenora are my suggestions that came to me immediately. also Melora, like the actress, well i can't remember her last name, so that wasn't helpful. i get alot of name ideas from tv and movies. Allora or Elora, also very musical sounding to my ear. also, a Scottish name Vannora, which has the same meaning as jennifer-white wave.

Lior, Liora and Eliora came to my mind - meaning 'my light' and 'god is my light' (Eliora), respectively. Lior is unisex, the others are distincly feminine. I wouldn't do Allora - in Italian it means as much as 'now, well, so', and Italians say it _all the time_.

I think if you really like Evelyn the most you should go with it. That student won't be your student forever.

Cora and Nora are both pretty, but Nora seems very popular now, so if you want to avoid common names than Cora is the better choice.

Theodora?

I like most of the 'ora' names. Cora, Nora and Theadora are all favourites.  

How about Elinor/Eleanor nn Nora  or Cordelia, Coraline or Coral nn Cora? 

Evelyn is lovely but far mo.e popular around me than Cora or Nora.

If you like  a similar sound to Evelyn there is Evangeline or Vivian.  There is also Eva?