【化】 protocotoin
former; original
【化】 ortho-
【医】 arch-; arche-; ortho-; pro-; prot-; proto-
approve; but; can; may; need; yet
dust; earth; ground; homemade; land; local; soil; unrefined
【医】 clay; earth; geo-; terra; terrae
because of; cause; follow; on the basis of