See the entire entry for dikkēn pron. that

Dan7:21 :וְקַרְנָא דִכֵּן עָבְדָה קְרָב עִם־קַדִּישִין וְיָכְלָה לְהוֹן : while that horn was battling with the holy ones and overcoming them

See the entire entry for ykl vb. to be able