Where does “kuartal” come from?

kuartal (Indonesian) comes from Dutch kwartaal, from Medieval Latin quartale, from Latin quārtus, from Proto-Indo-European kʷeturtos, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

kuartal (Indonesian): quarter, trimester: A fourth part of the year; 3 months (period of three months)

Definitions

quarter, trimester: A fourth part of the year; 3 months (period of three months)

Ancestry of “kuartal”, step by step

Step	Language	Word	Meaning
1	Dutch	kwartaal	quarter, trimester (period of three months)
2	Medieval Latin	quartale	nominative neuter singular of quārtālis;...
3	Latin	quārtus	fourth
4	Proto-Indo-European	kʷeturtos	—
5	Proto-Indo-European	kʷetwóres	four
6	Proto-Indo-European	kʷe-	and

Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Indo-European kʷeturtos →