Where does “էն” come from?

էն (Armenian) comes from Old Armenian այն, from Old Armenian նո-, from Proto-Indo-European h₁nós.

Ancestry of “էն”, step by step

էն traces back through two separate lines of ancestry.

via Old Armenian այն

StepLanguageWordMeaning
1Old Armenianայնthat
2Old Armenianնո-that
3Proto-Indo-Europeanh₁nós—

via Classical Armenian այն

StepLanguageWordMeaning
1Classical Armenianայն—
Every word from Proto-Indo-European h₁nós →Every word from Old Armenian նո- →Every word from Old Armenian այն →