Where does “ooku” come from?

ooku (Ye'kwana) comes from Proto-Japonic eku, from French écu, from Old French escut, from Latin scūtum, from Proto-Indo-European skei-, from Proto-Indo-European sek- — to cut, cut off, sever.

ooku (Ye'kwana): to have sex

Definitions

  1. to have sex

Ancestry of “ooku”, step by step

ooku traces back through two separate lines of ancestry.

via Proto-Japonic eku

StepLanguageWordMeaning
1Proto-Japonicekuhow many
2Frenchécushield; écu
3Old Frenchescutshield
4Latinscūtuma type of shield: the scutum, the large oblong wooden shield carried by the Roman infantry
5Proto-Indo-Europeanskei-to cut, to divide, to separate; to cut, split; to...
6Proto-Indo-Europeansek-to cut, cut off, sever

via Proto-Turkic öt-

StepLanguageWordMeaning
1Proto-Turkicöt-to pass, go over
Every word from Proto-Indo-European sek-Every word from Proto-Indo-European skei-Every word from Latin scūtum