Middle English word firhous comes from Old English fȳr, Old English hūs, Old English fȳrhūs, and later Old English fyrhus (A firehouse; furnace.)

Detailed word origin of firhous

Dictionary entry	Language	Definition
fȳr	Old English (ang)
hūs	Old English (ang)
fȳrhūs	Old English (ang)
fyrhus	Old English (ang)	A firehouse; furnace.
fyrehous	Middle English (enm)

Words with the same origin as firhous