1: σκώληξ
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(Strong's #4663 — Noun Masculine — skolex — sko'-lakes )

"a worm which preys upon dead bodies," is used metaphorically by the Lord in Mark 9:48; in some mss. vv. 44,46, cp. Isaiah 66:24 . The statement signifies the exclusion of the hope of restoration, the punishment being eternal.

2: σκωληκόβρωτος
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(Strong's #4662 — Adjective — skolekobrotos — sko-lay-kob'-ro-tos )

denotes "devored by worms" (skolex, and bibrosko, "to eat"), Acts 12:23 .