Where does “ությակ” come from?

ությակ (Armenian) comes from Armenian ութ, from Old Armenian ութ, from Proto-Armenian owtu-.

Ancestry of “ությակ”, step by step

StepLanguageWordMeaning
1Armenianութeight
2Old Armenianութeight
3Proto-Armenianowtu-—
Every word from Proto-Armenian owtu- →Every word from Old Armenian ութ →Every word from Armenian ութ →