Where does “ទុតិយតា” come from?

ទុតិយតា (Khmer) comes from Pali dutiya, from Sanskrit द्वितीय, from Proto-Indo-Aryan dwitíyas, from Proto-Indo-Iranian dwitíyas, from Proto-Indo-European dwitíyos, from Proto-Indo-European dwi-, from Proto-Indo-European dwóh₁ — two.

ទុតិយតា (Khmer): duplicate; copy (e.g. of a document)

Definitions

duplicate; copy (e.g. of a document)

Ancestry of “ទុតិយតា”, step by step

Step	Language	Word	Meaning
1	Pali	dutiya	second
2	Sanskrit	द्वितीय	second, second part, second half; fellow; second...
3	Proto-Indo-Aryan	dwitíyas	—
4	Proto-Indo-Iranian	dwitíyas	second
5	Proto-Indo-European	dwitíyos	—
6	Proto-Indo-European	dwi-	two; apart, asunder
7	Proto-Indo-European	dwóh₁	two

Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Indo-European dwi- →Every word from Proto-Indo-European dwitíyos →