The Spanish word 'birria' has an interesting journey from ancient Greek origins. It starts with the Greek word 'pyr' (πῦρ) meaning 'fire' or 'red'. This root led to the Greek name 'Pyrrhias' (Πυρρίας), which was a common name given to red-haired slaves in ancient times, literally meaning 'the red one'. This name was later adapted into Latin as 'Birria', which was used as a stock character name for slaves in Roman comedy. Finally, in Spanish, 'birria' evolved to mean a 'worthless thing' or 'grotesque figure', likely reflecting the low social status associated with slave characters in Roman theater.

While 'birria' is now also famously known in Mexican cuisine as a spicy stewed meat dish, there aren't many common, simpler Spanish words that share its unique Greek-Latin etymology.

The English word 'pyre' (as in a funeral pyre) comes from the same Greek root 'pyr' meaning 'fire'. Additionally, the word 'pyromaniac' combines this same Greek root with 'mania' to describe someone obsessed with fire. The scientific prefix 'pyro-' (as in pyrotechnics) also comes from this Greek root, always relating to fire or heat.