coetaˈneity
Also 7 coetanity.
[f. L. coætāne-us (see next) + -ity.]
The quality of being coetaneous; contemporaneousness.
| 1622–62 Heylin Cosmogr. (1674) Introd. 17/2 Borrowing..from Chronologies consent of time and co-etanity of Princes. 1799 Kirwan Geol. Ess. 366 The hypothesis of the coetaneity of the marine and vitriolic acids. |