TgJ Jer38:4 :הוּא מְרַשֵיל יָת יְדֵי גֻברֵי עָבְדֵי קְרַבָא ٠٠٠ לְמַלָלָא עִמְהוֹן כְפִתגָמַיָא הָאִלֵין‏ : he is weakening the hands of the the warriors ... by speaking things like these with them
See the entire entry for l_ prep. to, for

TgJ Jer38:4 :
See the entire entry for ˁl@kn conj. therefore

TgJ Jer38:4 :הוּא מְרַשֵיל יָת יְדֵי גֻברֵי עָבְדֵי קְרַבָא‏ : he is slackening the arms of the men doing battle
See the entire entry for ršl vb. to be loosened