Origin: It, dim. of oca, a goose < LL auca, a goose (< *avica, back-form. < L avicula, dim. of avis, bird): from its fancied resemblance in shape
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Origin: Italian, from dialectal ucarenna, diminutive of Italian oca, goose (from the fact that its mouthpiece is shaped like a goose's beak), from Vulgar Latin *auca, from *avica, from Latin avis, bird; see awi- in Indo-European roots.