Where does “isoleikko” come from?

isoleikko (Finnish) comes from Finnish leikko, from Ingrian leikka, from Russian лейка, from Russian ли́ть, from Proto-Slavic liti, from Proto-Balto-Slavic leˀi-, from Proto-Indo-European lēy- — to leave, let; to want, desire; to let; leave...

Ancestry of “isoleikko”, step by step

isoleikko traces back through two separate lines of ancestry.

via Finnish leikko

StepLanguageWordMeaning
1Finnishleikkoleaf-nosed bat, American leaf-nosed bat
2Ingrianleikkawatering can
3Russianлейкаwatering can; bail; Leika
4Russianли́тьto pour, to spill
5Proto-Slaviclitito pour
6Proto-Balto-Slavicleˀi-
7Proto-Indo-Europeanlēy-to leave, let; to want, desire; to let; leave...

via Finnish iso

StepLanguageWordMeaning
1Finnishisobig; large; great
2Finnishisäfather; Father
3Proto-Finnicicäfather
4Proto-Uralicićäfather
Every word from Proto-Indo-European lēy-Every word from Proto-Balto-Slavic leˀi-Every word from Proto-Slavic liti