>https://en.wiktionary.org/wiki/karhu
karhu (Finnish) = "bear".
There are like a lot of words for a bear in Finnish. Why there are so many names for a bear? Because You shouldn't say bear's real name as bear are sacred and bears were subject to a cult. At least "Karhu", "Otso", "Mesikämmen", "Nalle" and "Kontio" are recognizable for a modern Finn. When a bear was killed, there were specific rituals and a feast was held called "Karhunpeijaiset".
>https://en.wiktionary.org/wiki/viha#Finnish
viha (Finnish) = "anger", "hatred".
Viha was also a disease in the kansanusko or the folk religion. (I plan on reading more about the Finnish folk religion later.) The cause of the viha disease has something to do with haltia (plural haltijat). Haltijat are a bit similar to yōkai.
If I recall correctly, the word "viha" apparently comes from Sanskrit or some related language.
>https://en.wiktionary.org/wiki/v%C3%A4ki#Finnish
Väki (Finnish) = "people".
(Also related word "väkevä" = "bitter" or "powerful")
Väki meant (supernatural) powers and sometimes also had a meaning similar meaning to yōkai or haltija as well.