Excrutiate

ex⋅cru⋅ci⋅ate--- [ik-skroo-shee-eyt]

–verb (used with object), -at⋅ed, -at⋅ing.

1.	to inflict severe pain upon; torture: The headache excruciated him.

2.	to cause mental anguish to; irritate greatly.

Word Origin & History

excruciate

1570, from L. excruciatus, pp. of excruciare "to torture, torment," from ex- "out, thoroughly" + cruciare "cause pain or anguish to," lit. "crucify," from crux (gen. crucis) "cross."

Eg. Max tried to have faith, but the pain was excruciating [Ref: Angels and Daemons ]