cordial means: A synonym for liqueur. A thick syrup that may contain fruit, but is not alcoholic, which can be found in Australia, New Zealand, and Great Britain. :. (in Cooking Dictionary)

What else does cordial mean?

Friendly; warm and sincere (in Merlin Dictionary)

Respectful and polite; formal pleasant. (in Merlin Dictionary)

Invigorating; stimulating. This is a drink-specific ingredient. (in Merlin Dictionary)

A tonic is a refreshing or healing drink. (in Merlin Dictionary)