sarcasme, from Late Latin, from Greek sarkasmos, from sarkazein 'to tear flesh, bite your lip angrily, sneer', from sarx 'flesh'
sarcasm
noun
sar‧cas‧m [uncountable]
a way of speaking or writing that involves saying the opposite of what you really mean in order to make an unkind joke or to show that you are annoyed:
'Good of you to arrive on time,' George said, withheavy sarcasm (=very clear sarcasm).