Where does “ថ្ងៃសៅរ៍” come from?

ថ្ងៃសៅរ៍ (Khmer) comes from Khmer សៅរ៍, from Sanskrit सौर, from Sanskrit सुरा, from Proto-Indo-Aryan súraH, from Proto-Indo-Iranian súraH, from Proto-Indo-European sūl — thick liquid.

ថ្ងៃសៅរ៍ (Khmer): Saturday

Definitions

Saturday

Ancestry of “ថ្ងៃសៅរ៍”, step by step

ថ្ងៃសៅរ៍ traces back through two separate lines of ancestry.

via Khmer សៅរ៍

Step	Language	Word	Meaning
1	Khmer	សៅរ៍	Saturday
2	Sanskrit	सौर	consisting of spirituous liquor; relating,...
3	Sanskrit	सुरा	wine, spirituous liquor
4	Proto-Indo-Aryan	súraH	—
5	Proto-Indo-Iranian	súraH	wine, liquor, alcohol; any fermented drink, milk,...
6	Proto-Indo-European	sūl	thick liquid

via Khmer ថ្ងៃ

Step	Language	Word	Meaning
1	Khmer	ថ្ងៃ	day; sun
2	Proto-Austroasiatic	*tŋiːʔ	day

Every word from Proto-Indo-European sūl →Every word from Proto-Indo-Iranian súraH →Every word from Proto-Indo-Aryan súraH →