TgJ Is47:12 :בְקִסמַך וֻבסַגִיאוּת חַרשַך דַהֲוֵית מִתעַסְקָא בְהוֹן מִיָנְקוּתִיך‏ : with your magic and abundance of incantations that you have occupied yourself with since your youth
See the entire entry for ˁsq vb. to be difficult; to be occupied with