love Andi as a nn for a girl, as an honour name for my uncle Andy (Andrew) who passed away a couple years ago, but don’t know any long versions to get to it! do you have any name suggestions to get Andi as a nn? :))
Well, [name_u]Andrea[/name_u] is one, not a favorite of mine. I like
[name_f]Alexandra[/name_f]
[name_f]Deandra[/name_f]
[name_f]Esmeranda[/name_f]
[name_u]Holland[/name_u]
[name_u]Ireland[/name_u]
[name_f]Yolanda[/name_f]
[name_f]Lysandra[/name_f]
I love [name_f]Andi[/name_f] on a girl too. 
Andelynne
Andison
[name_u]Andrea[/name_u]
[name_f]Andrina[/name_f]
I like it for andrea & miranda best!!
[name_f]Andromeda[/name_f]
[name_f]Leandra[/name_f]
[name_f]Cassandra[/name_f]
[name_f]Alessandra[/name_f]
[name_f]Alexandria[/name_f]
[name_f]Sandrine[/name_f]
[name_f]Sandra[/name_f]
[name_f]Candace[/name_f]
[name_f]Amanda[/name_f]
(Also seconding previous suggestions [name_u]Andrea[/name_u], [name_f]Miranda[/name_f], [name_u]Holland[/name_u], [name_f]Alexandra[/name_f], and Lysandra)
Andrea or Andrina
[name_f]Andi[/name_f] is such a cute name and I love it on a girl !
[name_f]Adrienne[/name_f]
[name_f]Andromeda[/name_f]
[name_f]Ariadne[/name_f]
Andolina
[name_f]Amanda[/name_f]
[name_f]Alessandra[/name_f]
Cassandra/ [name_f]Kassandra[/name_f]
[name_u]Chandler[/name_u]
[name_u]Holland[/name_u]
[name_u]Ireland[/name_u]
Landyn/ Landen/ [name_m]Landin[/name_m] / [name_u]Landon[/name_u]
[name_f]Miranda[/name_f]
[name_f]Sandra[/name_f]
[name_f]Pandora[/name_f]
[name_f]Wanda[/name_f]
[name_f]Zandra[/name_f]
I don’t think I’ve seen [name_f]Fernanda[/name_f] or [name_f]Celandine[/name_f] mentioned