veracity

/vəˈrasɪti/

noun

1. conformity to facts; accuracy.

synonyms: truthfulness, truth, accuracy, accurateness, correctness, exactness, precision, 
preciseness, realism, authenticity, faithfulness, fidelity;

origin​

Early 17th century: from French véracité or medieval Latin veracitas, from verax ‘speaking truly’ (see veracious).