Many of these words in the Word Index are closely related, and cross referenced; none more-so than the words: Civil, Civilian, and Citizen, which all pertain to the secular, worldly affairs of the state.
For instance; Civil LawisRoman Law, and that is the system of jurisprudence that governs all western democracies. Therefore that which is “civil” is derived from the state, because civil affairs are the affairs of the state.
The above definitions clearly spell out the relationship of civil life to the state. Below are two closely related words etymologically speaking which also bear out the fact that civil is in relation to the internal affairs of the state: