The story
- Proto-Hellenic*plátʰyō
- Proto-Hellenic*plát͏̌t͏̌ō?
- Ancient Greekπλάσσω (plássō)
- Ancient Greekπλᾰ́σῐς (plắsĭs)
- English today-plasia
From New Latin -plasia, from Ancient Greek πλάσις (plásis, “molding, formation”).
Etymology from Wiktionary, CC BY-SA 4.0.