I spent about 5 or 6 years to Aikido and a bit less than 10 to Daito-ryu so put the dime o discussion. Aikido and Daito-ryu are names only, skills depend on the teacher and student. BTW first 5 books from Takeda/Ueshiba/Hisa company called Aikido but I never saw it in Aikido dojos.
Since when did they used that name? The 1930's perhaps?