German: from the Germanic personal name Tederich
(Theudoricus), composed of the elements theud ‘people’,
‘race’ + ric ‘power(ful)’, ‘rich’. This surname is common
throughout central and eastern Europe, particularly in the western
Slavic countries. The forename occurs in a wide variety of local
forms, especially in northern Germany. It is cognate with Dutch
Diederik (see Dederick).
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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