Where does “shuko” come from?

shuko (Romani) comes from Sanskrit शुष्क, from Proto-Indo-Iranian Hsúškas, from Proto-Indo-European h₂sews- — to be dry.

shuko (Romani): dry

Definitions

Step	Language	Word	Meaning
1	Sanskrit	शुष्क	dried, dried up, dry, arid, parched, shrivelled,...
2	Proto-Indo-Iranian	Hsúškas	dry, dried out
3	Proto-Indo-European	h₂sews-	to be dry

shuko — Etymology, Origin & Word History | Etymology Explorer