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Italian word osteria comes from Italian oste, Italian -eria (-ery.)
oste (Italian)
Army or host, especially that of the enemy Innkeeper, landlord (proprietor of an osteria).
-eria (Italian)
-ery.
osteria (Italian)
Bistro. Inn. Small restaurant in the country. Tavern Blimey! (Expletive - Often used to replace the mildly blasphemous expletive "ostia" (meaning "Host" or "Communion wafer")). Gee.