English
epochism
From epoch + -ism.
Formed from epoch + -ism
Proto-Indo-European *seǵʰ- ‘to overpower’
…
Ancient Greek ἔχω ‘to have, hold’
Ancient Greek ἐπέχω ‘to hold in, check’
Ancient Greek ἐποχή ‘a check, cessation, stop, pause, epoch of a…’
Medieval Latin epocha ‘age, period, time, season, epoch’
English epoch
Today it means
noun A tendency to regard the epoch in which one lives as superior to others.
Language periods are conventional ranges, not dates for this word.
Etymograph / epochism