mantequilla
/manteˈkiʝa/ · B1 · noun · f
butter
🧈 manteca (lard, fat) + -illa (little) = little fat, the softer cousin
Manteca is the older Spanish word for animal fat or lard, and -illa makes it smaller or gentler. In Argentina and Uruguay, manteca on its own still means butter, so both words point back to the same root.