Feminine version of Alastor?

I really love the name Alastor/[name_m]Alistair[/name_m] but I’m looking for a girls’ middle name. Is there any way I could feminise it?
I’ve considered [name_f]Alice[/name_f] but it seems too reminiscent of [name_f]Alice[/name_f] in Wonderland for my tastes.

We had a little girl at the daycare, her first name was [name_m]Allystair[/name_m]. Her nickname was [name_f]Ally[/name_f].

[name_u]Adair[/name_u], [name_f]Alessia[/name_f], [name_f]Alyssa[/name_f], [name_f]Ailis[/name_f], [name_u]Allison[/name_u] and [name_f]Aster[/name_f] came to mind soundwise

[name_m]Alastair[/name_m]/Alastor is also a variant of [name_m]Alexander[/name_m], which couls give you [name_f]Alexandra[/name_f], [name_f]Alexa[/name_f], [name_u]Sasha[/name_u], [name_f]Alessandra[/name_f]

Alistar
[name_f]Alicia[/name_f]
[name_f]Aster[/name_f]
[name_f]Almira[/name_f]
[name_f]Alma[/name_f]
[name_f]Esther[/name_f]
[name_f]Astrid[/name_f]
[name_f]Althea[/name_f]
[name_f]Alula[/name_f]
[name_f]Alta[/name_f]
[name_f]Athena[/name_f]

[name_m]Alistair[/name_m] is a form of [name_m]Alexander[/name_m], so any feminine form of [name_m]Alexander[/name_m] will work.

Is terms of similarity to [name_m]Alistair[/name_m], [name_f]Alessandra[/name_f] seems closest.

Allistaire [name_u]Rowan[/name_u] sounds like a cute name.

[name_f]Astoria[/name_f] came to mind (from -astor). I agree with previous posters that any name that’s a feminine form of [name_m]Alexander[/name_m] seems like your best option.

Alifair, perhaps? [name_f]Astoria[/name_f] also came to mine, as @gia.berry already mentioned.

[name_f]Astoria[/name_f] or [name_u]Allison[/name_u] come to mind!

My go-to name for feminizing a more masculine first name is [name_f]Lily[/name_f] in the middle. It goes with nearly anything and it’s a sweet name. That being said, [name_f]Alastriona[/name_f] [al-as-TREE-na] is the feminine form of [name_m]Alastair[/name_m].

I agree w/otri that [name_f]Alastriona[/name_f] is the closest version to Alastor. If you like playing around w/names, Alastrine or [name_f]Alastrina[/name_f] are simpler, if not as authentic. And all of the feminine forms of [name_m]Alexander[/name_m] would seem to work too…maybe [name_f]Alessia[/name_f]?

You wrote

I’m looking for a girls’ middle name

I love [name_f]Astoria[/name_f], but I see several have already suggested it.