IPA: //ˈkɒn.jæk//
KK: /ˈkɒn.jæk/
A type of brandy made from white wine, specifically produced in the region around Cognac, France.
He enjoyed a glass of cognac after dinner.
Cognac originates from the name of the town Cognac in France, where the brandy is produced. The term itself does not have a further breakdown into Latin or Greek roots, as it is derived directly from a geographical location.
Think of the town of Cognac in France, where this famous brandy is made. This helps you remember that 'cognac' refers to the brandy produced in that specific region.
No commonly confused words.