Where does “yema” come from?

yema (Old Spanish) comes from Latin gemma — A bud or eye of a plant; A gem, gemstone, jewel,...

Ancestry of “yema”, step by step

Step	Language	Word	Meaning
1	Latin	gemma	A bud or eye of a plant; A gem, gemstone, jewel,...

yema — Etymology, Origin & Word History | Etymology Explorer