gibbon (n.)

long-armed ape of the East Indies, 1770, from French gibbon (18c.), supposedly from a word in the French colonies of India but not found in any language there. Brought to Europe by Marquis Joseph-François Dupleix (1697-1763), French governor general in India 1742-54. The surname is Old French Giboin, from Frankish *Geba-win "gift-friend," or in some cases a diminutive of Gibb, itself a familiar form of Gilbert.

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Definitions of gibbon from WordNet
gibbon (n.)
smallest and most perfectly anthropoid arboreal ape having long arms and no tail; of southern Asia and East Indies;
Synonyms: Hylobates lar
Gibbon (n.)
English historian best known for his history of the Roman Empire (1737-1794);
Synonyms: Edward Gibbon