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Surname Etymology and Meaning of YAP

Name meanings and etymologies are often disputed. The information here is compiled from freely available sources, and no claims whatsoever are made for accuracy, either historical or etymological.

1. English: nickname for a clever or cunning person, from Middle English yap ‘devious’, ‘deceitful’, ‘bent’; ‘shrewd’.
2. Americanized spelling of North German Japp.
3. Chinese: variant of Ye.
4. Filipino: unexplained.

Source: Dictionary of American Family Names (2003)