Where does “քառյակ” come from?

քառյակ (Armenian) comes from Old Armenian քառեակ, from Old Armenian քառ, from Proto-Armenian kʷtwr̥-, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

քառյակ (Armenian): quartet; quatrain

Definitions

quartet; quatrain

Ancestry of “քառյակ”, step by step

Step	Language	Word	Meaning
1	Old Armenian	քառեակ	the number four; a quartet of things
2	Old Armenian	քառ	four
3	Proto-Armenian	kʷtwr̥-	—
4	Proto-Indo-European	kʷetwóres	four
5	Proto-Indo-European	kʷe-	and

Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Armenian kʷtwr̥- →