Aina (Swedish) comes from Finnish Aina, from Finnish Aino, from Finnish ainoa, from Proto-Germanic ainagaz, from Proto-Germanic ainaz, from Proto-Indo-European óynos — one; single.
Aina (Swedish): the police (collectively)
Definitions
the police (collectively)
Ancestry of “Aina”, step by step
Aina traces back through two separate lines of ancestry.