Дашка

Дашка уменьшительное ласкательное имя какого полного имени?
Заранее большое спасибо!!

Дарья -> Даша -> Дашка

Dashka feels slightly negative, like you don't take her seriously or don't like her or feel offended by her. A bit childish/neglectful.
Just as well as all the other names ending in "ка" - Женька, Васька, Дашка, Наташка...