Final answer:
Cognates are words that have come from a single ancestral language. They share a similar form and meaning in different languages.
Step-by-step explanation:
Words that have coine from a single ancestral language are called cognates. Cognates are words in different languages that share a similar form and meaning because they have a common origin. For example, the English word 'water' and the German word 'Wasser' are cognates because they both come from the same ancestral language.
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