Relating to cranes or crane-like birds; of or pertaining to the family Gruidae (cranes).
From Latin 'grus' (crane, the bird) plus '-ine' (suffix meaning of or relating to). The root may be imitative of the crane's call.
The Latin word 'grus' might actually be onomatopoetic—ancient Romans heard the bird's distinctive call and named it based on the sound, giving us this rare ornithological adjective.
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