coetaneity

/ˌkoʊ.ɪ.təˈni.ɪ.ti/

coetaneity means the condition of being coetaneous.

coetaneity is pronounced /ˌkoʊ.ɪ.təˈni.ɪ.ti/.

Etymology

By surface analysis, coet(aneous) + -aneity.

noun

The condition of being coetaneous.