unity
noun
[ ˈjuːnɪti ]
• the state of being united or joined as a whole.
• "European unity"
• the number one.
• "the slope of each dotted line is less than unity"
• each of the three dramatic principles requiring limitation of the supposed time of a drama to that occupied in acting it or to a single day ( unity of time ), use of one scene throughout ( unity of place ), and concentration on the development of a single plot ( unity of action ).
Origin:
Middle English: from Old French unite, from Latin unitas, from unus ‘one’.