The name is [name_f]Angharad[/name_f] (pro. ang-HA-rad, with soft/nasal ‘g’). I need you to list ALL of the nns you can think about, even the ones you think it’s a stretch, and which one of them would be the one you would use 
Wow tough challenge, neat name with a great meaning!
[name_f]Ann[/name_f]
[name_f]Hera[/name_f]
Anga – I’d use this
[name_u]Angie[/name_u]
Haddie
[name_f]Aggie[/name_f]
[name_f]Annie[/name_f]
Ang
Anga
[name_f]Angi[/name_f]
[name_f]Hara[/name_f]
[name_m]Hari[/name_m]
[name_m]Rad[/name_m]
[name_m]Raddie[/name_m]
I’d probably go with Anga/[name_f]Angi[/name_f] too.
I know an [name_f]Angharad[/name_f] and she goes by [name_f]Harrie[/name_f]!
Other options:
[name_u]Angie[/name_u]
[name_u]Ara[/name_u]
[name_m]Raddy[/name_m]
[name_f]Angela[/name_f] (this is a possibility, I guess!)
[name_f]Hara[/name_f]
I’d go by [name_f]Harrie[/name_f].
I also know an [name_f]Angharad[/name_f] who goes by [name_m]Hari[/name_m]!
So many cool nicknames for [name_f]Angharad[/name_f]…
[name_u]Ange[/name_u]
[name_f]Annie[/name_f]
[name_m]Hari[/name_m]
[name_u]Arie[/name_u]
[name_u]Angie[/name_u]
[name_m]Garrie[/name_m]
[name_f]My[/name_f] favourite is probably [name_f]Annie[/name_f]
[name_f]Angharad[/name_f]
[name_u]Angie[/name_u]
[name_f]Aggie[/name_f]
Aga
Anga
[name_f]Angy[/name_f]
[name_f]Annie[/name_f] - I would go with this
[name_f]Anna[/name_f]
Ghary (Like [name_u]Garry[/name_u])
[name_f]Hara[/name_f] (Like [name_f]Hera[/name_f])
[name_u]Ara[/name_u]
[name_m]Ary[/name_m] (Are-ee)
[name_f]Addie[/name_f]
[name_f]Ada[/name_f] ([name_m]Add[/name_m]-uh not A-da)
[name_m]Rad[/name_m]
[name_m]Radi[/name_m]
[name_f]Rada[/name_f]
A lot of these are not intuitive at all, and are totally not usable. Like [name_m]Rad[/name_m]? I don’t think so. Maybe [name_m]Radi[/name_m] but still a massive stretch.
There are a lot of suggestions we couldn’t think of before, that’s why I like asking questions here I’m currently calling her Rads. [name_f]Do[/name_f] you think Rads or [name_m]Raddie[/name_m] is too masculine?