Sentence examples for unknown origin from inspiring English sources

Sources: 1. of unknown origin.

a favor of unknown origin.

over this fear of unknown origin.

Etymology: (Greek: aconiton, of unknown origin).

an FUO – fever of unknown origin.

In these places, I am firmly black, of unknown origin".

Like me, brother John was of unknown origin.

Behçet disease (BD) is a multisystem vasculitis of unknown origin.

While some of the windows are of unknown origin, all share a careful attention to detail.

"Ivory of illegal or unknown origin cannot be sold legally internationally for commercial purposes.

It was, instead, like the virus isolated previously from the captive chimpanzee of unknown origin.