[name_u]Rio[/name_u] may work, even if it is a bit of a stretch. All of the sounds are there, just not in order.
If I was to shorten [name_f]Dorothy[/name_f] I would naturally shorten the name to [name_f]Dot[/name_f] or [name_f]Dottie[/name_f]. That feels like the most natural nickname.
I agree with a pp that it’s been so long since [name_f]Dorothy[/name_f] was commonly used, that I don’t think most people would naturally shorten it to Dot/Dottie.
In fact, I would say in the US at least we tend to take the first syllable and add ‘ee’ to it to generate nicknames (generally speaking, nicknaming is kind of a regional thing) so I would imagine [name_f]Dorie[/name_f] or [name_f]Dora[/name_f] would be a more natural nickname for most people these days than [name_f]Dot[/name_f] or [name_f]Dottie[/name_f]. Like [name_f]Eleanor[/name_f] (as someone else mentioned) I feel would, probably now be shortened to ‘Ellie’ and not ‘Nell’
[name_f]Dorothy[/name_f] nn [name_f]Daisy[/name_f]!
I know it’s not quite the same but I would likely use [name_f]Dorothea[/name_f] and [name_f]Thea[/name_f] for NN. As I think [name_f]Dorothy[/name_f] would automatically get [name_f]Dottie[/name_f]
I was thinking [name_f]Ro[/name_f] or [name_f]Thea[/name_f]!
[name_f]My[/name_f] daughter is named [name_f]Dorothy[/name_f]. She will be turning 2 soon. We thought we would use the nickname [name_f]Dot[/name_f] but we never ended up using a nickname for her. We just love calling her [name_f]Dorothy[/name_f]. We named her after my grandmother that went by [name_f]Dottie[/name_f]. I know you can also use the nickname [name_f]Dora[/name_f], [name_f]Thea[/name_f], and even [name_f]Dolly[/name_f].
Also, nobody every shortens it. I feel that most people won’t use a nickname for someone unless you tell them to.
[name_f]Dorothy[/name_f] as is is great!
[name_f]Deedee[/name_f] or DD would be my thought for a nickname.
[name_f]My[/name_f] preference would be [name_f]Dot[/name_f]. I do think [name_f]Dot[/name_f] or [name_f]Dottie[/name_f] immediately, but as others have mentioned, I don’t think that would always be the case in the real world.
If you’re looking for other options, I’d immediately turn to [name_f]Dorrit[/name_f].
[name_u]Dory[/name_u] also works and is adorable.
I like [name_f]Adora[/name_f], [name_u]Dory[/name_u], and [name_f]Thea[/name_f] for [name_f]Dorothy[/name_f]! Personally I associate [name_f]Dora[/name_f] the [name_u]Explorer[/name_u] too much with [name_f]Dora[/name_f] but I adore [name_f]Adora[/name_f]! If [name_f]Peggy[/name_f] can be short for [name_f]Margaret[/name_f] and [name_m]Bill[/name_m] is short for [name_m]William[/name_m], then [name_f]Adora[/name_f] can be short for [name_f]Dorothy[/name_f]! [name_u]Dory[/name_u] is a cute pet name that could be short for [name_f]Adora[/name_f] or [name_f]Dorothy[/name_f] itself. [name_f]Thea[/name_f] (prnounced thee-uh) is probably my favorite because its so adorable and sweet. Usually I would say [name_f]Thea[/name_f] is short for [name_f]Dorothea[/name_f] but it still works in this case. She could always go by just [name_f]Dorothy[/name_f] too! Good luck finding a name!
I typically would go with Dot/Dottie, but I have met a [name_f]Dorothy[/name_f] that went by [name_f]Dora[/name_f] before and she never seemed to have any issues with correcting nicknames!
Either just Dorothy, or the nickname Thea!
[name_f]My[/name_f] favourites are [name_f]Dot[/name_f], [name_f]Dora[/name_f], [name_f]Thea[/name_f] and [name_f]Dottie[/name_f] and I wouldn’t immediately shorten it to [name_f]Dot[/name_f] or [name_f]Dottie[/name_f].