Ido fervoyo

← German Eisenbahn (calque)

← Esperanto fervojo (borrowed)

← Spanish ferrocarril (calque)

← French chemin de fer (calque)

← Ido fero (compound)

← Ido voyo (compound)

← Italian ferrovia (calque)

← Russian желе́зная доро́га (calque)

→ Ido fervoyala (affix)