Where does “sanakirjamainen” come from?

sanakirjamainen (Finnish) comes from Finnish sanakirja, from Swedish ordbok, from Swedish ord, from Old Swedish orþ, from Old Norse orð, from Proto-Germanic wurdą, from Proto-Indo-European werdʰo-, from Proto-Indo-European werh₁- — to speak, say.

sanakirjamainen (Finnish): dictionaric