From [name_m]America[/name_m]. It could be different now but a lot of nicknames are established in early childhood so if you don’t it could just remain [name_f]Dorothy[/name_f] . [name_m]The[/name_m] one caveat I would add is that nicknames can also develop at some point stage when they go to school. Sometimes the child themselves or a friend starts it . I can’t speak for other countries but that’s my experience.