Where does “päättelykyky” come from?

päättelykyky (Finnish) comes from Finnish päättely, from Finnish päätellä, from Finnish päättää, from Finnish pää, from Proto-Finnic pää, from Proto-Uralic päŋe — head.

päättelykyky (Finnish): (ability of) reasoning, (ability of) deduction

Definitions

  1. (ability of) reasoning, (ability of) deduction

Ancestry of “päättelykyky”, step by step

päättelykyky traces back through two separate lines of ancestry.

via Finnish päättely

StepLanguageWordMeaning
1Finnishpäättelydeduction; inference
2FinnishpäätelläTo fasten off, tie off; To conclude, draw a...
3Finnishpäättääto end, conclude, terminate, finish, bring to a close
4Finnishpäähead; end, tip
5Proto-Finnicpäähead
6Proto-Uralicpäŋehead

via Finnish kyky

StepLanguageWordMeaning
1Finnishkykyability, capacity, capability; a capable person,...
2FinnishkyetäTo be able to, be capable of, can, be competent...
3Finnish-etäFront vowel variant of -eta
4Proto-Finnic-t'akForms verbs from nominal stems, generally with a causative, factitive or instrumental meaning
5Proto-Uralic-ta-Forms verbs from nouns; Forms causative verbs...
Every word from Proto-Uralic päŋeEvery word from Proto-Finnic pääEvery word from Finnish pää