Where does “acero” come from?
acero (Spanish) comes from Late Latin aciarium, from Latin aciēs, from Latin aceō, from Proto-Italic akēō, from Proto-Indo-European h₂eḱ-éh₁-ye-ti, from Proto-Indo-European h₂eḱ- — sharp.
acero (Spanish): hornless , antennaless
Ancestry of “acero”, step by step