Where does “radioaktiivisuus” come from?
radioaktiivisuus (Finnish) comes from Finnish radioaktiivinen, from Finnish radio, from Swedish radio, from English radio, from English radiotelegraphy, from English telegraphy, from English Telegraph, from French télégraphe — Deictic particle, here; Post-positional...
radioaktiivisuus (Finnish): radioactivity
Ancestry of “radioaktiivisuus”, step by step