Where does “անկանեմ” come from?

անկանեմ (Old Armenian) comes from Old Armenian անկանիմ, from Proto-Indo-European sn̥gʷ-, from Proto-Indo-European sengʷ- — to sink; to fall; to drop.

անկանեմ (Old Armenian): to lay the groundwork of lace; to weave; to twine