Where does “seekor” come from?

seekor (Indonesian) comes from Indonesian ekor, from Malay ekor, from Malay ikur, from Proto-Malayic *ikuʀ, from Proto-Austronesian *ikuʀ — tail.

Ancestry of “seekor”, step by step

seekor traces back through two separate lines of ancestry.

via Indonesian ekor

StepLanguageWordMeaning
1Indonesianekortail appendage of an animal
2Malayekortail appendage of an animal
3Malayikur—
4Proto-Malayic*ikuʀ—
5Proto-Austronesian*ikuʀtail

via Indonesian se

StepLanguageWordMeaning
1Indonesianse—
Every word from Proto-Austronesian *ikuʀ →Every word from Proto-Malayic *ikuʀ →Every word from Malay ikur →