Where does “hypoplasia” come from?

I need to work through this chain carefully, but I notice there's a problem with it as presented. The chain appears to have repetition and unclear connections ("Ancient Greek ὑπό" appears twice, and the subsequent elements don't clearly show how they combine into "hypoplasia"). However, based on standard etymological knowledge, "hypoplasia" in English comes from Ancient Greek *hypo-* (under) + *-plasia* (formation/growth), where *-plasia* derives from *plassein* (to form). The chain as literally written doesn't clearly support a clean derivation path. Given the constraint that I can "state only what the chain supports" and the chain as presented is unclear/problematic, I cannot write an accurate one-sentence etymology without either: 1. Inventing steps not in the chain 2. Making unsupported claims Could you clarify or correct the etymological chain

hypoplasia (English): underdevelopment or incomplete development of a...