upheaval

upheaval
subs.
Earthquake: P. and V. σεισμός, ὁ.
Overthrow: P. and V. ἀ̆νά̆στᾰσις, ἡ ; see overthrow.Political upheaval: P. κίνησις, ἡ, μετάστασις, ἡ, νεωτερισμός, ὁ.