"at their origin" is grammatically correct and can be used in written English.
It is typically used to refer to the beginning or source of something. Example: "Many cultural traditions have been passed down for centuries, but it is important to understand their evolution and the events that shaped them at their origin."
Despite a growing consumer interest in organic food, few consider the seeds at their origin.
Through this routing mechanism, vehicles can either be delayed at their origin or are routed through longer but non-congested routes such that their traveling time is minimized.
This study showed that the ideas that are destined to spread have a characteristic signature at their origin — that is, quite literally, within the brain of the sender.
With the headways given by the upper level model, passengers' arrival times at their origin stops are determined by the lower level model, in which the cost-minimizing behavior of each passenger is taken into account.
With meeting points, riders can be picked up and dropped off either at their origin and destination or at a meeting point that is within a certain distance from their origin or destination.
The creation and distribution of continents, the maintenance of the Earth as an active planet, the control of sea level and seawater chemistry, the creation and stability of the atmosphere, the long-term control of climate all of these have at their origin the processes of the solid earth.
How Intergenerational Coresidences Dissolve: Does the Difference at Their Origins Matter?
Moreover, the New York Fire Department is known for attacking fires at their origins, forcing men inside the building instead of keeping them outside.
As an industry leader and a true entrepreneur, Barry was brilliant, creative, fair-dealing, and had the foresight to anticipate and rectify potential hurdles at their origins.
They moved toward the center, as is quite usual; they looked back nostalgically at their origins and sideways suspiciously at new forms of political dissent, like the New Left.
Sites www.co.beaufort.sc.us/library/Beaufort /gullah.htm A site on the history of the Gullah people of the Sea Islands off South Carolina, with a look at their origins as slaves and their dialect, culture and customs, with links and recipes.
