* mittere: This root means "to send," "to let go," or "to release." It is the basis for many English words related to sending, such as "transmit," "missile," "mission," and "emit."
* trahere: This root means "to draw" or "to pull." When combined with other elements, it can imply the idea of "carrying across" or "transporting." Examples include "tractor" and "transport."
* ferre: This root means "to carry," "to bear," or "to bring." It can also be used to imply sending or conveying something across. Examples include "transfer," "offer," and "refer."
These are just a few of the Latin roots that can be used to express the concept of "sending across." The specific meaning of the word will depend on the context and the other elements that are combined with the root.