Where does “valkopäälanguri” come from?

valkopäälanguri (Finnish) comes from Finnish languri, from Hindi लंगूर, from Sauraseni Prakrit 𑀮𑀁𑀕𑀽𑀮, from Sanskrit लाङ्गूल — tail; penis.

Ancestry of “valkopäälanguri”, step by step

valkopäälanguri traces back through two separate lines of ancestry.

via Finnish languri

StepLanguageWordMeaning
1Finnishlangurilutung any of a group of Old World monkeys, making up the genus
2Hindiलंगूरlangur, kind of Indian ape: "Semnopithecus"
3Sauraseni Prakrit𑀮𑀁𑀕𑀽𑀮—
4Sanskritलाङ्गूलtail; penis

via Finnish pää

StepLanguageWordMeaning
1Finnishpäähead; end, tip
2Proto-Finnicpäähead
3Proto-Uralicpäŋehead
Every word from Sanskrit लाङ्गूल →Every word from Sauraseni Prakrit 𑀮𑀁𑀕𑀽𑀮 →Every word from Hindi लंगूर →