sähkönsininen (Finnish) comes from Finnish sähkö, from Finnish sähähtää, from Finnish ahtaa, from Proto-Finnic aktadak, from Proto-Uralic ëkta- — to hang up.
sähkönsininen (Finnish): electric blue colour
Definitions
electric blue colour
Ancestry of “sähkönsininen”, step by step
sähkönsininen traces back through two separate lines of ancestry.