Where does “fulbenkielinen” come from?

fulbenkielinen (Finnish) comes from Finnish kieli, from Proto-Finnic keeli, from Proto-Uralic käle — tongue; language.

Ancestry of “fulbenkielinen”, step by step

fulbenkielinen traces back through two separate lines of ancestry.

via Finnish kieli

StepLanguageWordMeaning
1Finnishkielitongue; language; string
2Proto-Finnickeelitongue; language
3Proto-Uralickäletongue; language

via Finnish fulbe

StepLanguageWordMeaning
1FinnishfulbeFula
2FulaFulɓe—
3Fulaful-related to leaving, dispersion
Every word from Proto-Uralic käle →Every word from Proto-Finnic keeli →Every word from Finnish kieli →