perheensisäinen (Finnish) comes from Finnish perhe, from Proto-Finnic pereh, from Proto-Finnic perä, from Proto-Finno-Ugric perä, from Proto-Uralic *perä — hindquarters, back part of something.
perheensisäinen (Finnish): intrafamilial
Definitions
intrafamilial
Ancestry of “perheensisäinen”, step by step
perheensisäinen traces back through two separate lines of ancestry.