devineront
Devineront is the third-person plural future indicative form of the French verb "deviner." The verb "deviner" has several meanings, primarily related to guessing, foreseeing, or divining. Therefore, "devineront" translates to "they will guess," "they will foresee," or "they will divine."
In a typical sentence, "devineront" would indicate a future action performed by a plural subject (they). For