synchrony vs synchroneity

synchrony and synchroneity both are nouns.

Word	Noun	Adjective	Verb	Adverb
synchrony	Yes	No	No	No
synchroneity	Yes	No	No	No

As nouns, synchrony and synchroneity are synonyms defined as:

synchrony and synchroneity: the relation that exists when things occur at the same time

Other synonyms of synchrony include synchronicity, synchronisation, synchronism, synchronization, synchronizing.

synchrony (noun)	synchroneity (noun)
the relation that exists when things occur at the same time	the relation that exists when things occur at the same time