tribulation
Concise Oxford English Dictionary © 2008 Oxford University Press:
tribulation /ˌtrɪbjʊˈleɪʃ(ə)n/
▶noun a cause of great trouble or suffering.
■ great trouble or suffering.
– origin ME: via OFr. from eccles. L. tribulatio(n-), from L. tribulare ‘press, oppress’, based on terere ‘rub’.
'tribulation' also found in these Oxford entries:

