From Middle English ostrich, ostriche, ostryche, ostrige, borrowed from Anglo-Norman ostrige and Old French ostruce, from Vulgar Latin *austruthio, from Latin avis + strūthiō, from Ancient Greek στρουθίων, or shortened from strūthiocamēlus, from Ancient Greek στρουθιοκάμηλος, from στρουθός + κάμηλος. Compare Spanish avestruz and Portuguese avestruz.
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