a. [f. SURNAME sb., after name, nominal.] Of or pertaining to surnames.

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1875.  M. A. Lower, Eng. Surnames (ed. 4), II. viii. 83. The surnominal characteristics of that province.

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1914.  E. Weekley, Romance of Names (ed. 2), 186–7. The first element is Anglo-Sax. hengest, stallion, and its most usual surnominal forms are Hensman and Hinxman.

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