Where does “kertaluontoinen” come from?

kertaluontoinen (Finnish) comes from Finnish luontoinen, from Finnish luonto, from Finnish luoda, from Proto-Finnic löödäk, from Proto-Finno-Ugric lewe- — to throw, shoot.

Ancestry of “kertaluontoinen”, step by step

kertaluontoinen traces back through two separate lines of ancestry.

via Finnish luontoinen

StepLanguageWordMeaning
1FinnishluontoinenHaving a specified type of nature (natural environment) usually translated as with... nature, not necessarily as an adjective
2Finnishluontonature, environment; characteristics of a person
3Finnishluodato create; to shovel; to shed
4Proto-Finniclöödäkto hit, to strike; to beat
5Proto-Finno-Ugriclewe-to throw, shoot

via Finnish kerta

StepLanguageWordMeaning
1Finnishkertatime, occasion; time; times; also once, when the...
2Proto-Finnickertatime
3Proto-Indo-Europeankert-times; to weave, twist together; time
4Proto-Turkic*keŕ-to travel, tour
Every word from Proto-Finno-Ugric lewe-Every word from Proto-Finnic löödäkEvery word from Finnish luoda