English
synchronously
From synchronous + -ly.
A compound of synchronous + -ly
Ancient Greek χρόνος ‘time’
Ancient Greek σύγχρονος ‘contemporaneous’
Late Latin synchronus ‘contemporary, synchronic’
English synchronous
Today it means
adv In a synchronous manner; carried out or occurring with synchrony; in phase or at the same time.
Language periods are conventional ranges, not dates for this word.
Etymograph / synchronously