Where does “vanhustenhoito-oppi” come from?

vanhustenhoito-oppi (Finnish) comes from Finnish vanhustenhoito, from Finnish hoito, from Finnish hoitaa, from Proto-Indo-Iranian śćaHyáH, from Proto-Indo-European (s)ḱeh₃ih₂, from Proto-Indo-European (s)ḱeh₃- — darkness, shadow.

Ancestry of “vanhustenhoito-oppi”, step by step

vanhustenhoito-oppi traces back through two separate lines of ancestry.

via Finnish vanhustenhoito

StepLanguageWordMeaning
1Finnishvanhustenhoitoeldercare, elderly care
2Finnishhoitocare; nurture; treatment, cure, therapy, remedy
3Finnishhoitaato nurse, care; to cure; to deal with, fix
4Proto-Indo-IranianśćaHyáHshade, shadow
5Proto-Indo-European(s)ḱeh₃ih₂shadow, shade
6Proto-Indo-European(s)ḱeh₃-darkness, shadow

via Finnish oppi

StepLanguageWordMeaning
1Finnishoppidoctrine; study, -logy, theory; in this sense...
2Finnishoppiato learn
3Proto-Finnicoppidakto learn
4Proto-Finno-Ugricwoppe-
Every word from Proto-Indo-European (s)ḱeh₃-Every word from Proto-Indo-European (s)ḱeh₃ih₂Every word from Proto-Indo-Iranian śćaHyáH