From Wiktionary, the free dictionary
Ablative case of ես (es, “I”), composed of ինձ (inj) + -էն (-ēn).
ինձէն • (injēn)
- ablative singular of ես (es)
ինձէն • (injēn)
- by myself, personally
- ես ինձէն աչօք տեսի ― es injēn ačʻōkʻ tesi ― I saw with my own eyes