caluroso
/kaluˈɾoso/ · B2 · adj
very hot, to a greater extent than caliente
🥵☀️ caluroso = calor (heat) + -oso (full of) → full of heat
Spanish calor means heat, and the suffix -oso means full of, like English -ous in 'glorious'. So caluroso is heat-filled: heated to an extreme, hotter than plain caliente, often describing weather or warm, enthusiastic welcomes.