As a noun tegg is
a sheep in its second year or before its first shearing.
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Not English
Wikidiffcom has no English definition. It may be misspelled. tegg
English
Noun
A sheep in its second year or before its first shearing.
References
* The American Heritage Dictionary of the English Language, Fourth Edition (2000, updated in 2009, published by the Houghton Mifflin Company)