TgJ Is42:3 :וְחַשִיכַיָא דִכבוֹצִין עָמֵי לָא יְטַפֵי‏ : he will not extinguish the needy that are like a wick with him
See the entire entry for ṭpy vb. to die out, be extinguished

TgJ Is42:3 :ִכבוֹצִין עָמֵי‏ : like a faint lamp wick
See the entire entry for ˁmy vb. to grow dim