saka (Minangkabau) comes from Persian شکر, from Middle Persian škl, from Sanskrit शर्करा, from Proto-Indo-Aryan śárkaraH, from Proto-Indo-Iranian ćárkaraH, from Proto-Indo-European ḱorkeh₂ — gravel, boulder; boulder; gravel.
Ancestry of “saka”, step by step
saka traces back through two separate lines of ancestry.