TgJ Is42:7 :דְאִנֻון עְגִינִין כַאְסִירֵי קְבַל‏ : imprisoned like prisoners of darkness
See the entire entry for ˁgn vb. to be immovable; immobilize

TgJ Is42:7 :לְפַתָחָא עֵינֵי בֵית יִשׂרָאֵל‏ :
See the entire entry for ptḥ vb. to open