Cyanogen and CyanogenMod have effectively split ways. The co-founder of both, Steve Kondik, has stuck with the latter. But the financial and legal spaghetti tangles between the two entities has meant that the community-driven Android ROM-editing project will have to go through some major changes to survive.
It seems that one of the changes will be the name. Sources to Android Police have pointed to references of “LineageOS,” the “Lineage Android Operating System”. An official repository is headed by the title “Lineage Android Distribution”. While the additional words may differ between mentions, “Lineage” seems to be the link in this case.
Merriam-Webster primarily defines the word as “descent in a line from a common progenitor.”
CyanogenMod files have been migrating over to GitHub at a rapid pace. Kondik wrote in a Google+ post that a lot of CyanogenMod’s infrastructure will need to be moved out of Cyanogen property if the project is to be saved. It’s likely that these movements represent that effort.