TgJ 2K18:21 :דְאִם יִסתְמֵיך גֻברָא עְלוֹהִי וְיֵיעוֹל בִידֵיה וְיִבזְעִנַה‏ : should a man lean on it, it will go into his hand and pierce it
See the entire entry for smk vb. to prop up, to support

TgJ 2K18:21 :כְעַן הָא אִתרְחֵיצתָא לָך עַל סְמָך קַניָא רְעִיעָא הָדֵין‏ : here now you have relied on support of this crushed reed
See the entire entry for rḥṣ vb. to trust, to rely