continuity
Pronunciation: /ˌkɒntɪˈnjuːɪti/
noun ( plural continuities)
- 1the unbroken and consistent existence or operation of something over time: a consensus favouring continuity of policy
- a state of stability and the absence of disruption: they have provided the country with a measure of continuity
- a connection or line of development with no sharp breaks: a firm line of continuity between pre-war and post-war Britain

Origin:
late Middle English: from Old French continuite, from Latin continuitas, from continuare 'continue', from continuus (see continuous)