The crux of the matter - Part 2

The Latin word for cross is CRUX.
EXCRUCIATING means “intensely painful”.
Etymology (Word Origin): late 16th century: from Latin excruciat- ‘tormented’, from the verb excruciare (based on crux, cruc- ‘a cross’).
The word crux took on the metaphorical meaning of torment or torture, especially mental (crucio).