Definition of «exact origin»

The phrase "exact origin" refers to finding or identifying the precise or specific beginning or source of something.

A handful of these elusive cosmic radio flashes, whose exact origin remains unknown, have been detected during the last decade. (americaspace.com)
The Maltese is considered an ancient breed whose exact origins are unknown. (pawster.com)
An ancient breed whose exact origins are lost in antiquity. (texaswestveterinarian.com)
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