Word Study
cayman
CIDE DICTIONARY
cayman, n. [From the language of Guiana: cf. Sp. caiman.].
The south America alligator. See Alligator. [1913 Webster]
OXFORD DICTIONARY
cayman, n. (also caiman) any of various S. American alligator-like reptilians, esp. of the genus Caiman.
Etymology
Sp. & Port. caiman, f. Carib acayuman
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