connected vs synchronic

connected

adj
  • Having a path, either directed or undirected, connecting every pair of vertices. 

  • Having favorable rapport with a powerful entity. 

  • Intimate; Having bonds of affection. 

  • Involved with organized crime, specifically someone not (yet) working for a crime organization, but referred to as a "friend" by made guys/wise guys inside the organization. 

  • Having or supporting connections, especially when through technology such as networking software or a transportation network. 

  • That cannot be partitioned into two nonempty open sets. 

  • Having relationships; involved with others. 

synchronic

adj
  • Occurring at a specific point in time. 

  • Relating to the study of a language at only one point in its history. 

How often have the words connected and synchronic occurred in a corpus of books? (source: Google Ngram Viewer )