verisimilitude
noun
[ ˌvɛrɪsɪˈmɪlɪtjuːd ]
• the appearance of being true or real.
• "the detail gives the novel some verisimilitude"
Origin:
early 17th century: from Latin verisimilitudo, from verisimilis ‘probable’, from veri (genitive of verus ‘true’) + similis ‘like’.